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PLOS ONE logoLink to PLOS ONE
. 2022 Dec 6;17(12):e0278558. doi: 10.1371/journal.pone.0278558

Body image disturbance and associated eating disorder and body dysmorphic disorder pathology in gay and heterosexual men: A systematic analyses of cognitive, affective, behavioral und perceptual aspects

Michaela Schmidt 1,*,#, Christoph O Taube 1,#, Thomas Heinrich 1,, Silja Vocks 1,, Andrea S Hartmann 2,#
Editor: Masaki Mogi3
PMCID: PMC9725123  PMID: 36472982

Abstract

Objective

This study contributes to the quantitatively large, yet narrow in scope research on body image in gay men by assessing whether gay and heterosexual men systematically differ on various dimensions of body image disturbance and associated pathology, i.e., eating disorder and body dysmorphic disorder symptoms. Moreover, we examined the influence of general everyday discrimination experiences and involvement with the gay community on body image.

Method

N = 216 men (n = 112 gay men, n = 104 heterosexual men) participated in an online survey measuring the discrepancy between self-rated current and ideal body fat/ muscularity; drive for leanness, muscularity, and thinness; body satisfaction; body-related avoidance and checking; appearance fixing; overall body image disturbance; eating disorder and body dysmorphic disorder pathology; general everyday discrimination experiences; and involvement with the gay community.

Results

Gay men showed a greater discrepancy between self-rated current and ideal body fat; higher drive for thinness, body-related avoidance, appearance fixing, overall body image disturbance, eating disorder and body dysmorphic disorder pathology; and lower body appreciation than heterosexual men (all p ≤ .05). Contrary to expectation, everyday discrimination experiences were more strongly associated with body image disturbance and eating disorder/ body dysmorphic disorder pathology in heterosexual men than in gay men (all p ≤ .05). Gay community involvement was not associated with any body image disturbance-, ED-, or BDD aspect in gay men (all p ≥ .20).

Discussion

The results suggest greater body image disturbance in gay men than in heterosexual men regarding cognitions, emotions, behaviors, and perception as well as higher eating disorder and body dysmorphic disorder pathology. The results also suggest the dilemma of a thin, yet muscular body ideal in gay men. Surprisingly, discrimination experiences and involvement with the gay community did not explain differences in body image disturbance. Gay men may have become resilient to discrimination over time, and body ideals might differ across gay sub-communities.

Introduction

Body image disturbance is a complex, multidimensional construct consisting of a perceptual, a cognitive-affective, and a behavioral component [1]. The perceptual component manifests as an overestimation of one’s body dimensions (e.g., body size and fat [2]) or an underestimation of one’s muscularity [3], while the cognitive-affective component comprises negative thoughts, attitudes, and feelings towards one’s own body, such as body dissatisfaction, shame, or disgust [4]. The behavioral component refers to body-related behaviors such as body-related avoidance or checking behavior [5] as well as investment in one’s body in terms of extreme exercise behavior [6], an unhealthy obsession with healthy nutrition [7], and appearance fixing [8]. As such, body image disturbance also is a hallmark feature of eating disorders (EDs) [9] and body dysmorphic disorder (BDD) [10] and a risk factor for the development and maintenance of EDs [11].

A representative German study by Buhlmann and colleagues found that 27% of men in the study reported at least one body-related concern [12], and men are increasingly seeking psychological help for body image problems [1315]. Despite these findings, however, previous research on body image disturbance, EDs, and BDD has mainly focused on women rather than men. It is assumed that gay men are at particular risk of developing body image disturbance and associated psychopathologies. For example, a quantitative synthesis of 30 years of research findings on body dissatisfaction and sexual orientation found significantly higher body dissatisfaction in sexual minority men than in heterosexual men [15], that might be similarly high [16] or even higher [17] than in heterosexual women. However, previous research on men’s sexual orientation and body image disturbance has mostly been limited to the analysis of singular aspects (i.e., body dissatisfaction), ignoring the complexity of body image disturbance as described above.

The vast majority of research examining differences in body image disturbance between gay and heterosexual men is limited to the cognitive-affective component, mainly by assessing body dissatisfaction. These studies have yielded a consistent picture of greater body dissatisfaction in gay men than in heterosexual men [1820]. In more detail, gay men seem to strive more strongly for a thin body (i.e., low body weight) [17, 21, 22], although some studies have reported similar levels of drive for thinness between gay and heterosexual men [20]. At the same time, there appears to be no difference between gay and heterosexual men in drive for muscularity (i.e., a muscular, broad physique) [19, 20]. However, previous studies did not differentiate their results in terms of muscle-related cognitions and muscle-related behaviors, with the latter being better categorized as part of behavioral body image disturbance [3]. Concerning the drive for a lean body (i.e., a trained, tight physique), only one comparative study exists, indicating that gay men have a stronger drive for leanness than heterosexual men [23].

In contrast to the cognitive-affective component of body image, only a small number of studies have focused on the behavioral component of body image disturbance in gay men, and if so, predominantly on exercise behavior. In sum, results are rather divergent, with some studies suggesting that gay men exercise more often than heterosexual men [24, 25], which would be in line with a previously mentioned high drive for muscularity, and other studies revealing that gay men undertake equally [22] or even significantly less physical exercise [17, 22, 26]. Despite the multiple, yet divergent results on exercise behavior, only one study has examined differences between gay and heterosexual men regarding body-related avoidance and compulsive self-monitoring, including checking behavior [21], and found greater levels of avoidance and checking behavior in gay men. So far, there have been no comparative studies between gay and heterosexual men regarding investment in one’s own body in terms of appearance fixing. Thus, those behaviors typically found for body dissatisfied women [27] have been neglected so far.

While research investigating cognitive-affective and behavioral components of body image disturbance predominantly uses self-report questionnaires, the question of how best to measure the perceptual component is contentious [4], especially with respect to self-report studies, in which there is no objective measure of body size. Such studies often employ figure rating scales [28], which conceptualize the discrepancy between one’s self-rated current and ideal figure as a distortion of perception. The majority of studies found no difference between gay and heterosexual men [e.g., 29]. However, most of this research used figure rating scales in which the presented body only varies in terms of body fat and not in terms of muscularity. Considering that body discontent in men seems to be especially focused on muscularity [30], this drastically limits the findings. Only one study used a figure rating scale that represents both a body fat and a muscularity dimension, and found no group differences between heterosexual and gay men on either of the two dimensions [31].

Given the aforementioned association between body image disturbance and the development and maintenance of EDs [11] as well as BDD [10], differences in body image disturbance between gay and heterosexual men might also be mirrored by differences in ED and BDD pathology. Studies have indeed found higher prevalence rates of EDs in gay men compared to heterosexual men [32, 33] as well as a more pronounced ED pathology [e.g., 17, 34]. Also, gay men appear to exhibit more severe ED symptoms such as binge eating [34], purging behavior [35], restrictive eating [31, 36], and taking weight-reducing supplements [35]. While research on ED pathology in gay men is quite robust, research comparing gay and heterosexual men regarding BDD is limited to one study. Boroughs, Krawczyk and Thompson [37] found comparable prevalence rates for BDD in both groups, but stronger BDD pathology in gay men compared to heterosexual men. In another study, almost half of sexual minority men screened positively for BDD, a prevalence that is drastically higher than in the general population [38]. Regarding muscle dysmorphia, a subtype of BDD characterized by a pathological concern about one’s muscularity, evidence is equally limited. For instance, in a validation study of the Muscle Dysmorphic Disorder Inventory (MDDDI [39]), sexual minority men reported qualitatively higher MDDI total scores than heterosexual men [28]. Furthermore, in a recent Italian study [40] nearly 9% of sexual minority men exhibited a high risk of being diagnosed with muscle dysmorphia, which was again, higher than that found in heterosexual samples.

The aforementioned differences in body image and related psychopathologies between gay and heterosexual men have been associated with several minority stress factors, such as everyday discrimination due to sexual orientation [16, 41, 42]. For example, a report published by the European Union Agency for Fundamental Rights (FRA) showed that gay men experience high levels of discrimination in everyday life [43], creating a stressful social environment that can lead to mental health problems [42]. Moreover, gay men report being exposed to discrimination due to their sexual orientation already in adolescence [44], and this early experience is suggested to be a factor in the development of greater body dissatisfaction in gay men [16]. Furthermore, perceived discrimination was reported to predict disordered eating in gay men [38], and bullying victimization was found to be associated with more coping-motivated eating [45]. Additionally, a recent study reported an indirect association between perceived stigma of gay men and proneness to an ED, mediated by self-compassion [46]. One study has also linked discrimination to higher levels of BDD symptoms or a BDD-positive screening in sexual minority men [38].

Besides discrimination, it is assumed that pressure from within the gay community to be attractive and muscular might also contribute to elevated body image concerns among gay men [47, 48]. This is in contrast to findings regarding the lesbian community which seems to act as a protective factor in the development of body dissatisfaction and appearance-related concerns [49, 50]. According to the intraminority stress theory [47], masculinity and attractiveness are means to gain status among the gay community, leading to appearance-based comparisons and competition with other community members, as well as pressure to conform to an attractive and muscular body ideal. This pressure is said to be further reinforced as men report to value attractiveness in a partner to a great extent [51] and gay and bisexual men usually rely on other men from within their sexual minority community for sexual and social relationships [47]. Therefore, gay community involvement has been linked to negative body image outcomes in gay men [48]. For example, Hospers and Jansen [52] found increased pressure to conform to appearance standards in order to attract sexual partners within the gay community. Furthermore, Convertino et al. [53] reported elevated rates of disordered body image behaviors and concerns depending on gay community involvement, and Beren et al. [16] reported an increased pressure to diet for gay men with high community involvement. Additionally, involvement with the gay community has been associated with appearance-related concerns [54], body dissatisfaction [55], and a stronger drive for muscularity [56]. However, other studies did not show an association of gay community involvement with body dissatisfaction [57], drive for muscularity [58], and drive for thinness [56], or revealed that greater levels of participation in gay-affirmative community events predicted lower body dissatisfaction [59]. That same study even found that greater alienation from the gay scene predicted increased body dissatisfaction and drive for thinness in men [59]. These findings support minority stress theories suggesting a buffering effect of gay and lesbian community involvement for sexual minority men [42]. Regarding ED pathology, Williamson and Spence [59] reported no association between participation in the gay scene and eating disturbances, whereas more frequent participation of gay men in gay-affirmative community events predicted lower eating disturbance. So far, no study has investigated affiliation with the gay community as a factor influencing the association between sexual orientation and BDD.

Overall, there is solid research suggesting an association between minority stress factors such as discrimination experiences and involvement with the gay community and body dissatisfaction and ED symptoms in gay men. Yet again, studies analyzing associations with other facets of body image disturbance as well as with BDD are scarce or non-existent, or results are highly divergent.

In sum, past research hints at stronger body image disturbance as well as higher ED and BDD pathology in gay men compared to heterosexual men. However, previous studies on this topic have mainly focused on the analyses of body dissatisfaction, as the cognitive-affective component of body image disturbance, and underlying influencing factors still remain unclear. Results regarding the behavioral or perceptual component of body image disturbance are still limited or inconsistent, and some aspects have not been investigated at all (e.g. appearance fixing). Given the multidimensional complexity of body image disturbance and the high relevance of perception distortion and behavioral coping strategies in the development and maintenance of body image disturbance as well as EDs and BDD [60], this lack of research is somewhat surprising. A comprehensive understanding of a multidimensional range of body image disturbance facets and their association with minority stress factors is essential in order to tailor integrated models of body image disturbance and adapt existing interventions for EDs and BDD for men of different sexual orientations. Therefore, in the present study, we aimed to extent the research on body image disturbance in gay men by performing a systematic multidimensional analysis of the cognitive-affective, behavioral, and perceptual component of body image disturbance and associated pathology (ED, BDD) in gay and heterosexual men. In addition, we examined everyday discrimination experiences and involvement with the gay community as potentially associated minority stress factors.

Based on the aforementioned findings, we hypothesized that gay and heterosexual men would show an equal discrepancy between their self-rated current and ideal figure in terms of body fat and muscularity (perceptual component of body image disturbance). However, we predicted that gay men would show significantly greater drive for thinness and drive for leanness, and significantly less body satisfaction compared to heterosexual men, but equally elevated cognitive drive for muscularity (cognitive-affective component of body image disturbance). We also expected significantly more body-related coping (body-related avoidance, appearance fixing) and checking behavior in gay men than in heterosexual men. However, we expected gay and heterosexual men to show equal levels of behavioral drive for muscularity (behavioral component of body image disturbance). Moreover, we hypothesized greater overall body image disturbance, ED pathology, and BDD pathology for gay men than for heterosexual men. Furthermore, we predicted that gay men, because of their sexual orientation, would report more everyday discrimination experiences than heterosexual men, and that frequency of everyday discrimination would be associated with the above-mentioned body image disturbance aspects as well as ED and BDD pathology in both groups. Finally, we predicted that in gay men, a strong involvement with the gay community would be associated with higher scores on measures of body image disturbance, ED and BDD pathology. To clarify, we defined gay community as a group of people with the shared characteristic of being gay, and gay community involvement as engaging with other members of the gay community and active participation in gay community spaces and activities, such as attending pride events, visiting a gay bar or reading a gay newspaper [55, 61].

Materials and methods

Participants

Data was derived from a broader online survey on body image and sexual orientation. Participants of all genders aged 18 years and older were recruited from 04/2017 to 01/2018 in German-speaking countries via university e-mail distribution lists, posters, flyers, press releases, with a particular focus on lesbian, gay, bisexual, and transgender (LGBT) websites and Facebook groups. A total of N = 6058 participants viewed the landing page of the online survey on unipark.de (Enterprise Feedback Suite (EFS) Survey, Questback), of whom n = 2037 actually started the survey. The whole questionnaire battery was completed by n = 838 participants. Of the n = 262 men who completed the questionnaire battery, n = 38 men were excluded as they reported a sexual orientation other than being gay or straight (with the cell count of other sexual orientations being too low for further analysis). A further eight participants were excluded as they entered answers throughout the survey that were beyond the range from which they could choose, indicating a typing error. Further visual observation of data did not detect any conspicuous answering patterns. Thus, n = 216 men were included in the present analyses (n = 112 gay men and n = 104 heterosexual men).

Comparable data on body image and sexual orientation in women have already been published [51, 62]. Furthermore, the men sub-sample analyzed in the present paper was in part also included in publications focusing on the validation of the Body Image Matrix of Thinness and Muscularity − Male Bodies (BIMTM-MB) [63], which is not included in the present paper, and the analysis of appearance-related partner preferences and body image in men and women across sexual orientations based on the BIMTM-MB [64]. Data from the Body Image Coping Strategies Inventory (BICSI) [65], the Gender-Neutral Body Checking Questionnaire (GNBCQ) [66], the Identification and Involvement with the Gay Community Scale (IGCS) [61] and The Everyday Discrimination Scale (EDS) [67] have not yet been presented for our men sub-sample in any other study.

Procedure

The study was reviewed and approved by Osnabrück University Ethics Committee (Ethikkommission der Universität Osnabrück). After carefully selecting the instruments that we wanted to use in our online study, we used Brislin’s [68] back-translation to translate measures where no German language version was available. A bilingual translator blindly translated (i.e., forward-translated) the original English language measures, including instructions and response categories, to German. Then, a second bilingual translator independently back-translated the instrument from German to the original English language. Afterwards, the two language versions of the measurement (i.e., the original English and back-translated English versions) were compared for conceptual, item, semantic, and operational equivalence. If discrepancies occurred, another translator would try to retranslate the relevant item. This process was continued until all bilingual translators agreed that the two versions of the instrument are identical in conceptual meaning.

During the online study, participants were first informed about the study’s objectives, duration, and confidentiality aspects as well as inclusion criteria. After confirming informed consent, participants started the questionnaire battery (described in alphabetical order below). The average processing time was 38 minutes. Upon completion, participants were given the opportunity to take part in a lottery to win an online shopping voucher (1 out of 10, worth 20 Euros). No further compensation for participation was payed.

Measures

Body Appreciation Scale-2 (BAS-2)

The BAS-2 [69; German translation available from the author] assesses general body satisfaction (e.g., appreciation, respect, and acceptance for one’s own body). The scale comprises ten gender-neutral items which are rated on a 5-point Likert scale from never (1) to always (5), with higher scores indicating greater body appreciation. The internal consistency of the BAS-2 is excellent (α ≥ .90 [58]; current study: α = .92, 95% CI [0.91, 0.94] (complete sample); α = .91, 95% CI [0.88, 0.93] (gay sample); α = .93, 95% CI [0.91, 0.95] (heterosexual sample)). The BAS-2 has been validated for the use with sexual minority men and women [70].

Bodybuilder Image Grid-Original (BIG-O)

The BIG-O [28] is a two-dimensional figure rating scale to measure perceptual body image disturbance in men. It consists of 30 drawn figures which vary along the two scales of body fat (columns) and muscularity (rows). The figures increase in body fat from left to right, and in muscularity from top to bottom, both from extremely low (1) to extremely high (5). For muscularity, larger values indicate greater muscle mass; for leanness, smaller values indicate less body fat. In the present study, participants were asked to choose the figure they think best represents their current and ideal body type. Next, the discrepancy current and ideal body fat / muscularity was calculated as a measure of perceptual body image disturbance. Larger discrepancies indicate greater perceptual body image disturbance. The test-retest reliability (one-week period) of current and ideal body types regarding body fat and muscularity is considered to be high (.77 ≤ r ≤ .96). The BIG-O is validated for the use with men [28] and has been used in studies investigating body image in gay men (e.g., [31]).

Body Image Coping Strategies Inventory (BICSI)

The BICSI [65; German translation available from the author] identifies how individuals deal with events and circumstances that can threaten their body image. The 29 items are rated on a 4-point scale from definitely not like me (0) to definitely like me (3), and can be allocated to the three subscales appearance fixing (10 items), avoidance (eight items), and positive rational acceptance (11 items). Larger values indicate greater coping behavior. Due to the specific research interest of the present study, only the first two subscales were used. These show a good to excellent (appearance fixing: α = .91; current study: α = .84, 95% CI [0.81, 0.87] (complete sample); α = .83, 95% CI [0.78, 0.88] (gay sample); α = .82, 95% CI [0.77, 0.87] (heterosexual sample) and acceptable (avoidance: α = .74; current study: α = .76, 95% CI [0.71, 0.81] (complete sample); α = .78, 95% CI [0.71, 0.83] (gay sample); α = .73, 95% CI [0.65, 0.80] (heterosexual sample) internal consistency. The BICSI is validated for the use in men [65] but has not yet been validated or used for a gay sample.

Body Image Disturbance Questionnaire (BIDQ)

The BIDQ [71] measures the extent of body image disturbance including appearance concern, preoccupation, perceived distress, functional impairment, and avoidance. It consists of 12 items, of which seven are rated on a 5-point Likert scale from not at all concerned/ not at all preoccupied/ no distress/ no limitation/ never (1) to extremely concerned/ extremely preoccupied/ extreme and disabling/ extreme, incapacitating/ very often (5). Larger values indicate greater body image disturbance. The remaining five additional qualitative open-ended items were not used in the present analyses. The BIDQ shows a good to excellent internal consistency (α = .92; current study: α = .88, 95% CI [0.85, 0.91] (complete sample); α = .87, 95% CI [0.83, 0.91] (gay sample); α = .89, 95% CI [0.85, 0.93] (heterosexual sample)). The BIDQ is validated for the use in men [72] but has not yet been validated or used for a gay sample.

Dysmorphic Concern Questionnaire (DCQ)

The DCQ [73] is a screening instrument for BDD. It comprises seven items that are rated on a 4-point scale from not at all (0) to much more than other people (3). Larger values indicate greater dysmorphic concerns. The DCQ shows a good internal consistency (α = .85; current study: α = .83, 95% CI [0.79, 0.86] (complete sample); α = .81, 95% CI [0.77, 0.86] (gay sample); α = .83, 95% CI [0.78, 0.88] (heterosexual sample)). The DCQ has been validated for the use with a sexual minority sample [74].

Drive for Leanness Scale (DLS)

The DLS [75; German translation available from the author] identifies the desire for a lean body, defined as low body fat and visible muscularity. The six items are scored on a 6-point scale from never (1) to always (6), with larger values indicating greater drive for a lean body. The questionnaire shows an acceptable to good internal consistency (α = .77; current study: α = .87, 95% CI [0.84, 0.89] (complete sample); α = .89, 95% CI [0.85, 0.92] (gay sample); α = .87, 95% CI [0.79, 0.89] (heterosexual sample)). The DLS is validated for the use in men [76] but has not yet been validated or used for a gay sample.

Drive for Muscularity Scale (DMS)

The DMS [3] reflects the striving for a more muscular body on the two subscales muscle-related cognitions and muscle-related behavior. The 15 items are rated on a 6-point scale from always (1) to never (6), with larger values indicating greater drive for a muscular body. Item 10 “I could imagine taking anabolic steroids” was excluded from the present study due to its poor factorial validity [59]. The internal consistency of the scale is considered good to excellent (α = .90; current study: α = .89, 95% CI [0.86, 0.91] (complete sample); α = .90, 95% CI [0.86, 0.92] (gay sample); α = .88, 95% CI [0.84, 0.91] (heterosexual sample); subscale muscle-related cognitions: α = .90, 95% CI [0.88, 0.92] (complete sample); α = .92, 95% CI [0.89, 0.94] (gay sample); α = .88, 95% CI [0.84, 0.91] (heterosexual sample); subscale muscle-related behavior: α = .83, 95% CI [0.79, 0.86] (complete sample); α = .84, 95% CI [0.79, 0.88] (gay sample); α = .82, 95% CI [0.76, 0.87] (heterosexual sample)). The DMS has been validated for the use with sexual minority men [77].

Drive for Thinness Scale (DTS)

The DTS (subscale of the Eating Disorder Inventory-2, EDI-2) [78] measures the desire to become thinner as well as the fear of gaining weight. The seven items are rated on a 6-point scale from never (1) to always (6), with larger values indicating greater drive for thinness. The DTS shows a good internal consistency (α = .85; current study: α = .88, 95% CI [0.86, 0.91]; α = .85 (complete sample); α = .89, 95% CI [0.86, 0.92] (gay sample); α = .85, 95% CI [0.81, 0.89] (heterosexual sample)). The DTS has not yet been validated for the use in a gay sample, but has been used in studies investigating body image in gay men (e.g., [20]).

Eating Disorder Examination-Questionnaire (EDE-Q)

The EDE-Q [79] measures ED pathology within the past 28 days. A total of 22 items can be allocated to four subscales: restraint (five items), eating concern (five items), weight concern (five items), and shape concern (eight items). The remaining six items, which assess diagnostic features, were not included in the present analyses. The included items are rated on a 7-point Likert scale from no days / none of the times / not at all (0) to every day / every time / markedly (6). Larger values indicate greater ED pathology. The internal consistency is considered to be excellent for the overall questionnaire (α = .97; current study: α = .93, 95% CI [0.91, 0.94] (complete sample); α = .93, 95% CI [0.92, 0.95]) (gay sample); α = .92, 95% CI [0.90, 0.94]) (heterosexual sample)), and acceptable to excellent for the subscales (.85 ≤ α ≤ .93; current study: .76, 95% CI [0.71, 0.81] ≤ α ≤ .88, 95% CI [0.86, 0.91] (complete sample); .77, 95% CI [0.70, 0.83] ≤ α ≤ .88, 95% CI [0.84, 0.91] (gay sample); .75, 95% CI [0.66, 0.81] ≤ α ≤ .88, 95% CI [0.85, 0.91] (heterosexual sample)). The EDE-Q has been validated for the use with sexual minority men [80].

Gender-Neutral Body Checking Questionnaire (GNBCQ)

The GNBCQ [66; German translation available from the author] measures gender-neutral body-checking behavior, i.e., without checking behaviors that could be conceptualized as more specific to the body image of men or women. It encompasses 10 items, which are rated on a 5-point Likert scale from never (1) to very often (5), with larger values indicating greater body-checking behavior. The internal consistency for the subgroup of men is considered to be good to excellent (α = .96; current study: α = .84, 95% CI [0.80, 0.87] (complete sample); α = .84, 95% CI [0.80, 0.88] (gay sample); α = .84, 95% CI [0.78, 0.88] (heterosexual sample)). The GNBCQ has been validated on men, but not on a sexual minority sample [66].

Identification and Involvement with the Gay Community Scale (IGCS)

The IGCS [61; German translation available from the author] assesses gay and bisexual men’s affiliation with and perceived closeness to the gay male community, such as through reading gay newspapers or attending gay-affirmative events. It consists of eight items, of which the first seven are rated on a 5-point Likert scale from strongly disagree (1) to strongly agree (5) or from not at all (1) to several times a week or daily (5). The eighth item is rated on a 5-point scale from no gay friends (1) to five or more gay friends (5). Larger values indicate greater identification and involvement. The internal consistency of the scale is acceptable (α = .78; current study: α = .74, 95% CI [0.64, 0.80] (gay sample)).

The Everyday Discrimination Scale (EDS)

The EDS [67; German translation available from the author] measures the frequency of universal everyday discrimination experiences, e.g., being insulted or treated differently on a regular basis. It consists of 10 items, which are rated on a 6-point Likert scale from never (1) to almost every day (6). Larger values indicate more frequent everyday discrimination experiences. The tenth item asks about the specific self-suspected reason for discrimination, like age, nationality, or sexual orientation. Therefore, the EDS does not only apply to discrimination experiences based on sexual orientation. The scale shows a good internal consistency (α = .88; current study: α = .87, 95% CI [0.84, 0.89] (complete sample); α = .84, 95% CI [0.80, 0.88] (gay sample); α = .89, 95% CI [0.86, 0.92] (heterosexual sample)). The EDS has not yet been validated or used on a gay sample.

Sociodemographic characteristics

Sexual orientation was measured via self-report. Participants were able to choose from a range of different categories of sexual orientations (gay, lesbian, heterosexual, bisexual, pansexual, polysexual, asexual), although we explicitly acknowledged that sexual orientation is a continuum. If none of the categories met their sexual orientation, participants could type in their sexual orientation in a text field. Further data were gathered on age, gender, nationality, relationship status, highest educational attainment, body height (in meters) and weight (in kilograms) in order to calculate body mass index (BMI), again via self-report.

Statistical analyses

All analyses were performed using SPSS Statistics (Version 26) [81] except for the two one-sided t-tests to test for equivalence between groups, which were run with the open source software jamovi (Version 1.6) [82]. To compare groups in terms of demographic characteristics, we used χ2 tests (or Monte Carlo exact tests with 10,000 samples and 99% confidence interval if more than 20% of expected frequencies were between 1 and 5) or t-tests for independent groups. In case of a significant χ2 test, adjusted residuals were calculated and checked to locate the source of the significance. An adjusted residual with an absolute value that exceeded +/- 1.96 indicated lack of fit of the null hypothesis, i.e., significance [83].

To test the expected group differences in body image disturbance facets, ED and BDD pathology, and the frequency of discrimination experiences, we again conducted t-tests for independent groups. In the case of heterogeneity of variance, Welch’s tests were employed. We adjusted the p-values with Benjamini-Hochberg correction to correct for multiple testing [84]. Effect sizes were reported as Cohen’s d (small effect: d = 0.2, medium effect: d = 0.5, large effect d = 0.8; [85]; for t-tests) or Cramér’s V (small effect: V = 0.1, medium effect: V = 0.3, large effect V = 0.5; [85]; for χ2 tests). To test for equivalence of groups, two one-sided t-tests (TOST) were calculated. The test is a variation of the standard one-sided t-test, that examines whether the hypothesis that the difference between two groups is zero can be rejected. The TOST, however, examine whether the hypothesis that the difference between groups is meaningful (i.e., at least as extreme as the smallest effect size of interest) can be rejected. The smallest effect size of interest was set using established benchmarks [86], namely at d = 0.2, which represents a trivially small effect size [85]. Groups are considered equivalent when both of the two one-sided t-tests are statistically significant. In case the TOST was non-significant, indicating that groups are not statistically equivalent, a one-sided t-test was run to check if groups significantly differed from each other. In the case of heterogeneity of variance, Welch’s tests were employed.

To investigate the association of frequency of discrimination experiences as well as involvement with the gay community with body image disturbance facets, ED pathology, and BDD pathology, we calculated Spearman’s correlation coefficient ρ for gay men and heterosexual men separately, or in the case of involvement with the gay community for gay men only (small effect: ρ = 0.1; medium effect: ρ = 0.3, large effect: ρ = 0.5; [85]). Extreme outliers (more than 3 times the interquartile range) were checked for unrealistic answers or response patterns and kept in the sample if not applicable. However, we checked whether significantly divergent results emerged after eliminating these outliers and reported this if applicable.

Results

Sociodemographic characteristics

Table 1 shows sociodemographic characteristics of gay men and heterosexual men. The two groups did not differ significantly in age, BMI, relationship status or nationality, but did differ in terms of highest educational attainment (Table 1). The observation of the adjusted residuals suggested that the rejection of the null hypothesis resulted as, compared to heterosexual men, a larger number of gay men had no higher-track secondary school qualification than statistically expected.

Table 1. Group comparisons regarding demographic characteristics.
Variables Gay men (n = 112) Heterosexual men (n = 104) Group Comparisons
M SD M SD T df p Cohen’s d
Age (years) 30.26 11.31 28.82 9.76 .95 214.17 .316 0.14
BMI (kg/m2) 24.80 5.26 24.36 4.21 .63 211.06 .497 0.09
n % n % χ2 df p Cramer’s V
Education 6.91 2 .032 .18
    University degree/ Polytechnic degree 46 41.1 49 47.1
    Higher-track secondary school qualifications 45 40.2 48 46.2
    No higher-track secondary school qualifications 21 18.8 7 6.7
Relationship status 3.32 2 .180 .12
    In a relationshipa 47 42.0 50 48.1
    Not in a relationshipb 64 57.1 50 48.1
    Another unlisted relationship status 1 0.9 4 3.8
Nationality 0.11 1 .743 .02
    German 102 91.1 96 92.3
    Other 10 8.9 8 7.7

Note. BMI = body mass index

M = mean; SD = standard deviation.

a includes committed relationship, living separately / living together; married; partnered

b includes single; separated; divorced; widowed

Group differences in body image disturbance facets, eating disorder and body dysmorphic disorder pathology, and discrimination experiences

With regard to body image disturbance facets, gay men showed significantly higher scores in terms of drive for thinness (DTS), appearance fixing (BICSI-appearance fixing) and general body image disturbance (BIDQ) compared to heterosexual men, while heterosexual men scored significantly higher than gay men regarding body appreciation (BAS-2). There were no significant differences between the two groups in terms of drive for leanness (DLS), body avoidance (BICSI-avoidance) and body checking (GNBCQ) (Table 2). The equivalence tests (TOSTs) as well as the null hypothesis tests (one-sided t-tests) regarding the discrepancy between current and ideal muscularity (BIG-O subscale) and muscle-related behavior (DMS subscale) were both non-significant. This indicates that groups were neither statistically equal, nor significantly different from each other. Hence, the difference between the two groups was somewhere between zero and the smallest effect size of interest that was previously set. As such, it is not possible to sufficiently interpret those results. The equivalence test regarding muscle-related cognitions (DMS subscale) was significant, whereas the null hypothesis test was non-significant, meaning that the observed effect was statistically equivalent to zero. For the discrepancy between current and ideal body fat (BIG-O subscale), the equivalence test was non-significant, but the null hypothesis test reached statistical significance, indicating that the observed effect was statistically different from zero (Table 3).

Table 2. Group comparisons regarding body image disturbance facets, eating disorder and body dysmorphic disorder pathology, and everyday discrimination experiences.

Variables Gay men (n = 112) Heterosexual men (n = 104) Group Comparisons
M SD M SD T df p 1 Cohen’s d
Cognitive-affective body image disturbance
    BAS 3.31 0.72 3.63 0.80 -3.01 214 .008 -0.42
    DLS 3.85 1.13 3.78 1.04 0.48 214 .675 0.06
    DTS 2.64 1.14 2.20 0.88 3.24 207.25 .005 0.43
Behavioral body image disturbance
    BICSI–appearance fixing 1.37 0.58 1.07 0.52 3.99 214 < .001 0.55
    BISCI–avoidance 0.83 0.57 0.66 0.50 2.23 214 .045 0.32
    GNBCQ 2.06 0.70 1.98 0.64 0.87 214 .488 0.12
Overall body image disturbance
    BIDQ 1.95 0.71 1.62 0.70 3.38 214 .005 0.47
    EDE-Q total score 1.48 1.15 1.12 0.96 2.52 214 .033 0.34
Eating disorder pathology
    EDE-Q–restraint 1.22 1.35 1.03 1.16 1.15 214 .341 0.15
    EDE-Q–eating concern 0.65 1.07 0.45 0.74 1.60 198.08 .165 0.22
    EDE-Q–weight concern 1.49 1.32 1.11 1.13 2.26 214 .045 0.31
    EDE-Q–shape concern 2.03 1.38 1.49 1.25 3.02 214 .009 0.41
Body dysmorphic pathology
    DCQ 6.60 3.90 5.39 3.97 2.26 214 .045 0.31
Everyday discrimination experiences
    EDS 1.82 0.68 1.80 0.80 0.249 214 .800 0.03

Note. M = mean; SD = standard deviation; BAS = Body Appreciation Scale-2; BICSI = Body Image Coping Strategies Inventory; BIDQ = Body Image Disturbance Questionnaire; DCQ = Dysmorphic Concern Questionnaire; DLS = Drive for Leanness Scale; DTS = Drive for Thinness Scale; EDE-Q = Eating Disorder Examination-Questionnaire; GNBCQ = Gender-Neutral Body Checking Questionnaire; EDS = The Everyday Discrimination Scale. Significant group comparisons are in bold.

1Benjamini-Hochberg adjusted p-values.

Table 3. Equivalence testing regarding perceptive body image disturbance and drive for muscularity.

Variables Gay men (n = 112) Heterosexual men (n = 104) Test
M SD M SD T df p
Perceptual body image disturbance
    BIG-O–Discrepancy current—ideal muscularity 0.66 0.98 0.71 0.78 t-test -0.42 209 .674
TOST Upper -1.90 209 .030
TOST Lower 1.05 209 .147
    BIG-O–Discrepancy current—ideal body fat -1.08 1.09 -0.68 1.05 t-test -2.73 214 .007
TOST Upper -4.20 214 < .001
TOST Lower -1.26 214 .896
Behavioral body image disturbance
    DMS–behavior 1.91 0.95 2.04 0.92 t-test -0.98 214 .330
TOST Upper -2.45 214 .008
TOST Lower 0.49 214 .311
    DMS–cognitions 3.46 1.30 3.34 1.14 t-test 0.77 213 .440
TOST Upper -2.91 213 .002
TOST Lower 4.46 213 < .001

Note. TOST = two one-sided t-tests; M = mean; SD = standard deviation; BIG-O = Bodybuilder Image Grid-Original; DMS = Drive for Muscularity Scale. Significant group comparisons are in bold.

Concerning ED and BDD pathology, gay men scored significantly higher than heterosexual men in terms of total eating disorder pathology (EDE-Q total score) and the subscales weight concern and shape concern as well as dysmorphic concerns (DCQ). There were no group differences regarding the subscales restraint eating and eating concern (EDE-Q) (Table 2).

There was no difference between gay men and heterosexual men with regard to the frequency of everyday discrimination experiences (EDS) (Table 2). For a detailed description of self-rated suspected reasons for discrimination, see Table 4.

Table 4. Self-rated suspected reason for discrimination as stated in the everyday discrimination experience scale.

Suspected reason Gay men (n = 112) Heterosexual men (n = 104)
Total % Total %
Sexual orientation 63 55.8 5 4.8
Origin/ nationality 11 9.7 24 23.1
Sex 10 8.8 13 12.5
Ethnicity 5 4.4 12 11.5
Age 21 18.6 21 20.2
Religion 0 0 9 8.7
Height 12 10.6 18 17.3
Weight 22 19.5 17 16.3
Other aspect of physical appearance 17 15.0 23 22.1
Other reason 24 21.2 33 31.7

Correlations of everyday discrimination experiences with body image disturbance facets, eating disorder pathology, and body dysmorphic disorder pathology in gay men and heterosexual men

In terms of body image disturbance facets, everyday discrimination (EDS) of gay men was only positively correlated with body avoidance (BICSI-avoidance) and general body image disturbance (BIDQ). In heterosexual men, there were positive correlations of everyday discrimination (EDS) with muscle-related cognitions (DMS subscale), appearance fixing, body avoidance (both subscales of the BICSI), body checking (GNBCQ), and general body image disturbance (BIDQ). There was also a negative correlation between everyday discrimination (EDS) and body appreciation (BAS-2) in heterosexual men (see Table 5).

Table 5. Correlations of everyday discrimination experiences with body image disturbance facets, eating disorder pathology and body dysmorphic disorder pathology.

Variable Everyday discrimination experience (EDS)
Gay men (n = 112) Heterosexual men (n = 104)
ρ p ρ p
Perceptual body image disturbance
    BIG-O-Discrepancy current–ideal body fat .098 .306 .019 .846
    BIG-O-Discrepancy current–ideal muscularity .110 .246 .049 .623
Cognitive-affective body image disturbance
    BAS -.075 .430 -.263 .007
    DLS .032 .734 .035 .721
    DMS–cognitions .104 .275 .315 .001
    DTS .022 .822 .172 .081
Behavioral body image disturbance
    BICSI–appearance fixing .159 .094 .290 .003
    BISCI–avoidance .193 .041 .360 .000
    GNBCQ .165 .081 .308 .001
    DMS–behavior -.089 .348 .097 .327
Overall body image disturbance
    BIDQ .280 .003 .322 .001
Eating disorder pathology
    EDE-Q total score .184 .052 .450 .000
    EDE-Q–restraint .098 .302 .271 .005
    EDE-Q–eating concern .121 .202 .422 .000
    EDE-Q–weight concern .224 .018 .452 .000
    EDE-Q–shape concern .182 .055 .405 .000
Body dysmorphic disorder pathology
    DCQ .207 .028 .243 .013

Note. BIG-O = Bodybuilder Image Grid-Original; BICSI = Body Image Coping Strategies Inventory; BIDQ = Body Image Disturbance Questionnaire; DLS = Drive for Leanness Scale; DMS = Drive for Muscularity Scale; DTS = Drive for Thinness Scale; EDE-Q = Eating Disorder Examination-Questionnaire; GNBCQ = Gender-Neutral Body Checking Questionnaire; EDS = The Everyday Discrimination Scale. Significant effects are in bold.

Concerning ED and BDD pathology, everyday discrimination (EDS) of gay men was positively correlated with total eating disorder pathology (EDE-Q total score) and the subscales weight concern and shape concern as well as dysmorphic concerns (DCQ). In heterosexual men, everyday discrimination (EDS) was positively correlated with total eating disorder pathology (EDE-Q total score) and all subscales (eating concern, weight concern, shape concern, restraint eating), as well as dysmorphic concerns (DCQ) (see Table 5).

Correlations of involvement with the gay community with body image disturbance facets, eating disorder pathology, and body dysmorphic disorder pathology in gay men

Involvement with the gay community (IGCS, M = 2.91; SD = 0.72) was not significantly associated with any of the body image disturbance facets or with ED and BDD pathology (see Table 6).

Table 6. Correlations of Involvement with the gay community with body image disturbance facets, eating disorder pathology and body dysmorphic disorder pathology.

Variable Involvement with the gay community scale (IGCS)
Gay men (n = 112)
ρ p
Perceptual body image disturbance
    BIG-O–Discrepancy current—ideal body fat -.007 .938
    BIG-O–Discrepancy current—ideal muscularity -.073 .444
Cognitive-affective body image disturbance
    BAS .005 .960
    DLS .070 .464
    DMS–cognitions -.112 .242
    DTS .045 .637
Behavioral body image disturbance
    BICSI–appearance fixing .001 .989
    BISCI–avoidance -.033 .726
    GNBCQ .070 .466
    DMS–behavior .053 .578
Overall body image disturbance
    BIDQ .005 .957
Eating disorder pathology
    EDE-Q total score .079 .409
    EDE-Q–restraint .057 .554
    EDE-Q–eating concern .004 .969
    EDE-Q–weight concern .040 .679
    EDE-Q–shape concern .084 .378
Body dysmorphic disorder pathology
    DCQ .006 .954

Note. BIG-O = Bodybuilder Image Grid-Original; BICSI = Body Image Coping Strategies Inventory; BIDQ = Body Image Disturbance Questionnaire; DLS = Drive for Leanness Scale; DMS = Drive for Muscularity Scale; DTS = Drive for Thinness Scale; EDE-Q = Eating Disorder Examination-Questionnaire; GNBCQ = Gender-Neutral Body Checking Questionnaire; EDS = The Everyday Discrimination Scale.

Discussion

The objective of the present study was to extent the literature on body image in gay men by providing a multidimensional analysis of perceptual, cognitive-affective and behavioral body image disturbance facets and associated ED and BDD pathology in gay and heterosexual men. Moreover, we sought to examine the association of sexual minority stress factors like discrimination experiences and involvement with the gay community with body image disturbance in gay men.

In line with our hypothesis, on the cognitive-affective dimension of body image disturbance, gay men showed significantly lower body appreciation and significantly higher drive to be thin and to lose weight compared to heterosexual men. This corroborates the solid foundation of previous research which reported higher body dissatisfaction in gay men than in heterosexual men, especially with regard to body weight [17, 19, 20]. However, there was no significant difference between gay and heterosexual men in terms of drive for leanness, i.e., a trained, tight physique with low body fat and immediately visible muscularity. Moreover, the two groups showed equal levels of cognitive drive for muscularity. The results support previous research that revealed no difference between gay and heterosexual men regarding the desire to have the “perfect” muscular body [87], and an overall trend of increased muscularity-focused body dissatisfaction in men [30, 88, 89]. At the same time, gay men might also be oriented towards a not only lean, but thin body ideal, usually ascribed to heterosexual women [90]. It is argued that, like heterosexual women, gay men may view their bodies as sex objects to attract men, making them anxious to look not only strong, but also youthfully thin [91]. The results contradict findings proposing that the drive for a thin body is a “female” body image issue [87, 90, 92] and underlines the paradox of a highly light-weight, yet wide and muscular body ideal for gay men [17]. This rather unattainable body ideal might cause a dilemma influencing the highly elevated body dissatisfaction in gay men.

The findings described above might also be reflected by greater discrepancies between self-rated current and ideal body fat in gay men, however comparable, though not statistically equal, discrepancies between self-rated current and ideal muscularity in gay and heterosexual men found in our study. These findings correspond to earlier studies reporting greater discrepancies between self-rated current and ideal body fat in gay men than in heterosexual men [93, 94], but no difference between gay and heterosexual men regarding the discrepancies between self-rated current and ideal muscularity [31]. However, as we established neither statistical equality nor statistical differences between gay and heterosexual men regarding the muscularity dimension, our findings should be treated with caution.

With regard to the behavioral component of body image disturbance, gay men reported significantly more body-related coping strategies such as appearance-fixing or avoidance behavior, which is in line with our initial hypothesis and the so far only previous study on those aspects by Cella and colleagues [21]. As gay men consider appearance more essential to their sense of self than do heterosexual men [52], and appearance-fixing and avoidance are strategies to cope with potential threats or challenges to body image [65], it is likely that they engage more frequently in these coping strategies to protect their self-worth. Regarding behaviors that target muscularity, namely behavioral drive for muscularity, once again, gay and heterosexual men showed similar, though not statistically equal, results. This supports our hypothesis and previous research examining overall drive for muscularity [19, 20], as well as a previous study that found no difference between gay and heterosexual men in extreme exercise behavior [22]. Nevertheless, the two groups did not differ significantly in terms of checking behavior, which contradicts our predictions as well as the only previous study that has assessed checking behavior in gay and heterosexual men [21], which used the Body Uneasiness Test (BUT; [95]). The similar scores between gay and heterosexual men in our study might stem from the fact that half of the items (5/10) in our instrument (GNBCQ) explicitly refer to muscle-related checking, thus mainly pertaining to body image aspects in which the two groups do not seem to differ. The BUT, by contrast, operationalizes checking behavior more broadly (i.e., time spent in front of the mirror; difficulties to avert gaze from own body), which could account for the differential findings.

In accordance with the finding of greater body image disturbance in our study as described above, gay man also showed significantly higher ED and BDD pathology. In more detail, gay men showed higher overall ED pathology than heterosexual men, confirming our initial hypothesis and the majority of previous research, which also reported more elaborated ED pathology in gay men [20, 31, 94, 9698]. Moreover, gay men showed higher weight and shape concern, but did not show higher restraint eating or eating concern. This indicates that although gay men seem to have more ED-related concerns about how they look and how much they weigh, they apparently do not differ from heterosexual men in terms of pathological ED-related behaviors. This contradicts our expectations and previous research indicating more dieting behavior [36], fasting [99], and greater use of diet pills in gay men [25, 35, 99, 100]. A possible explanation for these discrepant findings may be that the participants’ age was much lower in previous studies (e.g., mean age of sample in years: 29,54 (our study) vs. 22.4 [35], 23.5 [36], 16.04 [99], 15.9 [100]), and eating disorder symptom severity seems to be highest in adolescence and young adults, before declining in adulthood [101]. Regarding BDD pathology, scores were higher in gay men as well, which is in line with our initial hypothesis and the small amount of previous research on differences in BDD between gay and heterosexual men [37].

To account for expected group differences in body image disturbance facets, ED and BDD pathology, we suggested minority stress factors, such as everyday discrimination. However, gay and heterosexual men did not differ in the frequency of everyday discrimination experiences. Furthermore, for gay men, discrimination was only positively associated with the severity of BDD pathology and some ED subscales as well as overall body image disturbance, but rarely with any specific components of body image disturbance. For heterosexual men, on the other hand, we found associations between discrimination and BDD pathology, total ED pathology and all specific subscales, overall body image disturbance, body satisfaction and all aspects on the behavioral dimension of body image disturbance (i.e., behavioral drive for muscularity, body-related avoidance, checking, appearance-fixing). This indicates that everyday discrimination does not seem to have influenced the more pronounced multidimensional body image disturbance, ED and BDD pathology in gay men in this study. However, everyday discrimination does seem to affect body image and associated pathologies in heterosexual men. A possible explanation could be that the instrument we used was initially designed to measure discrimination among people of different races and ethnicities, and items mostly refer to discrimination that is based on racial stereotypes and not on stereotypes regarding sexual orientation. Thus, the instrument might not reflect common discrimination experiences of gay men. Accordingly, when gay men reported discrimination experiences, only half of them listed their sexual orientation as the perceived reason for their discrimination experiences, while for heterosexual men, the most frequent perceived reason for everyday discrimination was nationality. Furthermore, we assessed current discrimination experiences in the everyday life of gay men. However, gay men appear to suffer from stereotypes and bullying due to their sexual orientation from adolescence onwards [44], which poses a critical phase for the development and manifestation of body image disturbance [102]. It is possible that discrimination in this psychologically vulnerable life phase has an even bigger impact on body image and associated pathologies than current discrimination. Alternatively, gay men may have become resilient to discrimination over time, lessening the impact of current discrimination experiences on their body image and associated symptoms. Lastly, due to previous experiences, gay men might have come to expect stigma and anticipate discrimination due to previous experiences [42], and this anticipation may account for mental health-related distress for gay men [103].

Surprisingly, and contrary to our hypothesis, body image disturbance facets, BDD and ED pathology in gay men were not associated with the extent of involvement with the gay community, even though our sample of gay men was rather engaged with the gay community. This confirms the findings of some previous studies which reported no association of gay community involvement with body image disturbance facets such as body dissatisfaction [57]. However, it contradicts other studies which did report such associations with body dissatisfaction [55] and with drive for muscularity [56]. These contradictory findings may be explained by the different instruments that were used to measure involvement with the gay community. For instance, the IGCS used in our study not only measures participation and involvement with the gay community (e.g., attending gay-affirmative events, reading gay magazines), but also self-identification as gay and identification with the gay community. The self-constructed instrument used by Davids et al. (Gay Community Participation Scale) [55] measures frequency of involvement and participation with the gay community only. As predominantly involvement with the gay community is suspected to convey specific unrealistic body ideals that contribute to body discontent [104], this could be a possible reason for the non-significant association of the IGCS and body image disturbance in our gay sample. Since the authors of the IGCS do not clearly define which items refer to involvement and which items refer to identification with the gay community, we were not able to calculate subscales to test for this hypothesis. Furthermore, and consistent with prior studies focusing on body image in gay men, the present study conceptualized the gay community as a broad social system. However, the body ideals of men’s gay culture are rather divergent (e.g., muscular “bears” vs. youthful “twinks” [105]) and may also differ between countries and associated cultural backgrounds, contributing to the divergent findings across nationwide studies. Moreover, gay subgroups seem to differ in the extent to which members are reduced to their appearance [58], a factor which appears to mediate the association between involvement with the gay community and body dissatisfaction [55]. To assess these factors, future studies should examine body image among particular groups within the gay community. Lastly, it was argued that intracommunity pressure to conform to a certain body ideal stems from the wish to attract other members of the community for sexual and social relationships [47]. However, 42% of gay men in our study were in a committed relationship, which was a similar quantity as in heterosexual men. This may have lessened the pressure from the gay community on our gay sample to stay attractive since men in committed relationships may be less concerned with attracting new partners.

Some limitations of the present study should be mentioned. Due to the cross-sectional study design, it was not possible to investigate causal relationships between sexual orientation and our hypothesized influencing factors. Regarding the use of figural drawing scales to measure perceptual body image distortion, general limitations of these measures include that scales only display hand-drawn und therefore less detailed body images, that are based on an artist’s subjective belief of varying bodies weight and muscularity. Also, those measures only depict a limited set of varying bodies, while in reality body shape is a continuous variable. Those aspects might have limited the validity of our results [63]. Furthermore, as we only used self-reports, we did not have an objective measure of participants’ bodies (e.g., height, weight, muscularity, body fat), which limits the ability to draw conclusions regarding perceptual body image disturbance. Accordingly, the discrepancy between self-rated current and ideal body could also be interpreted as perceptual body discontent [106, 107] and therefore allocated to the cognitive-affective facet of body image disturbance. Also, as there were no previously validated German language versions of the Body Appreciation Scale-2 [68], the Body Image Coping Strategies Inventory [65], the Drive for Leanness Scale [75], the Gender-Neutral Body checking Questionnaire [66], the Identification with Gay Community Scale [61] and The Everyday Discrimination Scale [67], we had to translate those by ourselves via back-translation [68]. We did not conduct a comprehensive validation process of the translated measures, but the but the internal consistencies of the translated measures are similar to the original validation studies. Moreover, as the present sample is community-based, adult, non-clinical and mostly with an academic background, the results cannot be transferred to clinical and non-academic populations or adolescents. Lastly, we found neither statistical equivalence nor significant differences between the groups regarding behavioral drive for muscularity and discrepancy between self-rated current and ideal body fat. This might be due to our method of determining the smallest effect size of interest, which was based on established benchmarks (Cohen’s effect size conventions [85]), and not on related studies in the literature or individual, empirical considerations [86].

The present study contributes to the quantitatively large, yet narrow in scope research on body image in gay men by systematically examining multiple dimensions of body image disturbance in gay and heterosexual men as well as associated pathologies, including the under-investigated BDD pathology. Overall, the results suggest that gay men not only show more body dissatisfaction than heterosexual men, but a significantly higher multidimensional body image disturbance affecting cognitions, emotions, behaviors, and perception. This might be especially true for facets linked to body weight and thinness, suggesting the dilemma of a paradoxically thin, yet muscular body ideal for gay men, that might not even be dissolved in a lean body. In accordance with that, gay man also showed significantly higher ED and BDD pathology for which body image disturbance poses an eminently relevant risk factor [10, 11]. However, differences in body image might not be associated with the frequency of everyday discrimination experiences and cross-subgroup involvement with the gay community.

Our findings might be used to tailor existing models of body image and to adapt the prevention, counseling, and treatment of body image disturbance, BDD or EDs for men with different sexual orientations. For instance, counselors and therapists treating gay men should pay attention to conflicting body ideals, including men’s muscle-related body ideals, but also ideals and coping strategies regarding body weight and general physical attractiveness.

Acknowledgments

The authors thank Sarah Mannion for proof-reading the manuscript.

Data Availability

The minimal anonymized data set necessary to replicate our study findings can be downloaded from a public repository (Open Science Framework). See: DOI 10.17605/OSF.IO/KFYZ7.

Funding Statement

The authors received no specific funding for this work.

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Decision Letter 0

Jamie Royle

20 Apr 2022

PONE-D-21-24159Body image disturbance, eating disorder and body dysmorphic disorder pathology in homosexual and heterosexual men: Do discrimination experiences and involvement with the gay community matter?PLOS ONE

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5. Review Comments to the Author

Please use the space provided to explain your answers to the questions above. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. (Please upload your review as an attachment if it exceeds 20,000 characters)

Reviewer #1: The language used in this paper is outdated. The use of the term "homosexual" is outdated, pathologizing, and has been historically stigmatizing. Then the authors proceed to use an acronym (HOM) on line 12 (it is noted they also do this for heterosexual men) to further stigmatize.

Please see the notes below from GLADD: an American non-governmental media monitoring organization, founded as a protest against defamatory coverage of LGBT people.

Offensive: "homosexual" (n. or adj.)

Preferred: "gay" (adj.); "gay man" or "lesbian" (n.); "gay person/people"

Please use gay or lesbian to describe people attracted to members of the same sex. Because of the clinical history of the word "homosexual," it is aggressively used by anti-gay extremists to suggest that gay people are somehow diseased or psychologically/emotionally disordered – notions discredited by the American Psychological Association and the American Psychiatric Association in the 1970s. Please avoid using "homosexual" except in direct quotes. Please also avoid using "homosexual" as a style variation simply to avoid repeated use of the word "gay." The Associated Press, The New York Times and The Washington Post restrict use of the term "homosexual" (see AP & New York Times Style).

From: https://www.glaad.org/reference/offensive

The authors also seem to be conflating gender and sex with their use of the terms male and men. They need to clearly demonstrate the difference between these two things.

Reviewer #2: 1. Please avoid using the term “homosexual man/men” and “homosexual woman/women.” Instead, use “gay man/men” and “lesbian woman/women.”

2. How are the authors operationally defining “gay community”?

3. Use “scale score reliability” instead of “internal consistency” (i.e., Cronbach’s alpha may be high in situations where item-total correlations are poor).

4. The sample size is quite modest. Do the authors have any idea why recruiting individuals to participate in this study was difficult?

5. 95% confidence intervals should be reported for all Cronbach’s alpha coefficients.

6. For all measures, please provide the possible range of scores and indicate whether higher scores represent more (or less) of the construct of interest.

7. Is the IGCS equally applicable to gay people residing in rural areas (i.e., they may not have access to “gay-affirmative” events)?

8. How was “sexual orientation” measured?

9. On page 15, the authors refer to sexual orientation as an “independent variable.” Technically, this is inaccurate as a person’s sexual orientation cannot be manipulated.

10. What sort of follow-up analysis was used to determine the source of the statistically significant chi-square test? (see Sharpe, D. [2015] "Chi-Square test is statistically significant: Now what?," Practical Assessment, Research, and Evaluation: Vol. 20 , Article 8.

DOI: https://doi.org/10.7275/tbfa-x148

11. Table 2: p values should not be reported as .000

12. Do the authors have any idea why mean scores on the EDS were so low (1.82 and 1.80)? Were there a subset of EDS items that participants reported experiencing more frequently? If so, should those be used grouped and treated as a stand alone indicator of discrimination. Another possibility would be to take the item that was endorsed most often and compare that group to participants who did not experience the specific episode of discrimination.

13. It would be helpful if the authors briefly explained how two group equivalence is determined, and the ways in which equivalence testing and standard hypothesis testing differ.

14. The mean score for the IGCS was 2.91 (near the scale midpoint of 3). Do the authors have any idea why gay men did not report being more invested in the gay male community? (Can lower than expected involvement be linked with COVID-19?)

15. Related to point 14, were there certain items on the IGCS for which gay participants reported high levels of involvement?

16. Did the authors use any quality control items in their survey (e.g., “For this question, please select ‘strongly agree.’”)

17. A diagrammatic representation of the mediation models would be informative.

18. In the summary, the authors should reiterate the value of this manuscript in terms of the incremental advances it offers.

Reviewer #3: The current study examined differences in body image constructs between gay and heterosexual men in German-speaking countries and whether the relationship between sexual orientation and body image facets was mediated by discrimination experiences and gay community involvement. I’m concerned about the rigor of this paper for two reasons: One, that the introduction seems to omit important previous literature, and two, that the methods are somewhat opaque.

General Comments

1. I encourage the authors to adhere to APA standards for bias-free language, especially when speaking about sexual minority individuals: https://apastyle.apa.org/style-grammar-guidelines/bias-free-language/sexual-orientation

In particular, the APA recommends not using “homosexual” and instead using “gay.”

2. Having read the whole paper at this point, I find the title to be misleading as the mediation analyses are only a small part of the overall focus of this paper.

Abstract

3. It’s unclear what “discrimination experiences” consist of for heterosexual men.

4. The mesomorphic ideal consists of both low body fat and high muscularity. As all men are subject to these pressures, I fail to see how differences in facets linked to body fat are explained by the pressures to achieve the mesomorphic ideal.

Introduction

5. There are much more recent citations to assert the fact that gay men are at higher risk of body image disturbance than the Beren paper. I suggest:

He, J., Sun, S., Lin, Z., & Fan, X. (2020). Body dissatisfaction and sexual orientations: A quantitative synthesis of 30 years research findings. Clinical Psychology Review, 81, 101896. https://doi.org/10.1016/j.cpr.2020.101896

6. The authors state that “most studies” did not differentiate their results between cognition and behavior. Are the authors aware of studies that did? If so, these should be cited, and their results should be explained.

7. There are more studies that examine figure rating scales in gay and heterosexual men. See:

Tiggemann, M., Martins, Y., & Kirkbride, A. (2007). Oh to be lean and muscular: Body image ideals in gay and heterosexual men. Psychology of Men & Masculinity, 8(1), 15–24. https://doi.org/10.1037/1524-9220.8.1.15

Meneguzzo, P., Collantoni, E., Bonello, E., Vergine, M., Behrens, S. C., Tenconi, E., & Favaro, A. (2021). The role of sexual orientation in the relationships between body perception, body weight dissatisfaction, physical comparison, and eating psychopathology in the cisgender population. Eating and Weight Disorders - Studies on Anorexia, Bulimia and Obesity, 26(6), 1985–2000. https://doi.org/10.1007/s40519-020-01047-7

8. The authors state that studies “hint at a stronger ED pathology in HOM.” It’s unclear what this means.

9. I suggest an additional citation for discrimination, gay community involvement, eating disorders, and BDD:

Convertino, A. D., Brady, J. P., Albright, C. A., Gonzales IV, M., & Blashill, A. J. (2021). The role of sexual minority stress and community involvement on disordered eating, dysmorphic concerns and appearance- and performance-enhancing drug misuse. Body Image, 36, 53–63. https://doi.org/10.1016/j.bodyim.2020.10.006

Methods

10. Given that it’s an online survey, what kind of data quality checks, checks for repeat participants, etc. were administered? I’m concerned about the quality of the data.

11. In your measures section, please cite any available studies that support the validity of these measures in heterosexual and gay men. Further, any studies that validate the German translations would also be helpful. If none are available, please provide your translation procedures in supplemental materials. I suggest following this paper for guidance:

Swami, V., & Barron, D. (2019). Translation and validation of body image instruments: Challenges, good practice guidelines, and reporting recommendations for test adaptation. Body Image, 31, 204–220. https://doi.org/10.1016/j.bodyim.2018.08.014

12. I would not recommend the Benjamini-Hochberg correction to be separated by “grouping” of outcomes. I’ve never seen it employed this way, and probably increases the false discovery rate. I also wonder how it was employed as there is no mention of this in the results section.

13. The authors test indirect effects/mediation within a cross-sectional design. These indirect effects are not particularly meaningful in such designs. The authors may find the below readings helpful on this topic:

Maxwell, S. E., & Cole, D. A. (2007). Bias in cross-sectional analyses of longitudinal mediation. Psychological Methods, 12(1), 23–44. https://doi.org/10.1037/1082-989X.12.1.23

Maxwell, S. E., Cole, D. A., & Mitchell, M. A. (2011). Bias in Cross-Sectional Analyses of Longitudinal Mediation: Partial and Complete Mediation Under an Autoregressive Model. Multivariate Behavioral Research, 46(5), 816–841. https://doi.org/10.1080/00273171.2011.606716

Results

14. The results section is incredibly difficult to read with so many abbreviations. In general, I would suggest that results are reported in terms of constructs with scale abbreviations in parentheses to facilitate reader experience.

15. In tables 5 and 6, there is a table note that says that significant effects are bolded. This is not true.

Discussion

16. The authors gloss over the finding that drive for thinness was higher among gay men than heterosexual men. What do the authors make of this finding?

17. How can the test neither establish “statistical equality nor statistical differences”? What’s the point of running the test then?

18. I would like to see a citation supporting the statement that “relationships among HOM may be focused on physical relationships rather than on creating a family.” How is this a difference between gay and heterosexual men?

19. Please list additional limitations with the use of perceptual measures as they are numerous. Also, the lack of validation of these measures in the German language and gay and heterosexual men if that validation is lacking.

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Reviewer #1: No

Reviewer #2: No

Reviewer #3: Yes: Alexandra D. Convertino

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PLoS One. 2022 Dec 6;17(12):e0278558. doi: 10.1371/journal.pone.0278558.r002

Author response to Decision Letter 0


26 Aug 2022

Response to Editor and Reviewers

Manuscript: Body image disturbance and associated eating disorder and body dysmorphic disorder pathology in gay and heterosexual men: A systematic analyses of cognitive, affective, behavioral und perceptual aspects (PONE-D-21-24159)

Dear Editor and Reviewers,

thank you for your highly important remarks and the chance for clarification and improvement of our manuscript. We did our best to respond to your comments. Please find detailed comments on your remarks and their implementation in the manuscript underneath each notation. The page references refer to the version of our manuscript with track changes.

Editor’s comments to the Author:

1. Please ensure that your manuscript meets PLOS ONE's style requirements, including those for file naming. The PLOS ONE style templates can be found at https://journals.plos.org/plosone/s/file?id=wjVg/PLOSOne_formatting_sample_main_body.pdf and https://journals.plos.org/plosone/s/file?id=ba62/PLOSOne_formatting_sample_title_authors_affiliations.pdf

Thank you for those very useful templates. We updated the style of our manuscript.

2. We noted in your submission details that a portion of your manuscript may have been presented or published elsewhere. "Henn, Taube, Vocks, & Hartmann, 2019", "BIMTM-MB; Arkenau, Vocks, Taube, Waldorf, & Hartmann, 2020", "Cordes, Vocks, & Hartmann, in press". Please clarify whether this publication was peer-reviewed and formally published. If this work was previously peer-reviewed and published, in the cover letter please provide the reason that this work does not constitute dual publication and should be included in the current manuscript.

Thank you for giving us the opportunity for clarification. We described overlapping use of data and the clear differences between our manuscript and the publications listed above in the cover letter (“Data from the same project on women with different sexual orientations without any data overlap have been peer reviewed and formally published already (Henn, Taube, Vocks, & Hartmann, 2019, DOI: https://doi.org/10.3389/fpsyt.2019.00531; Steinfeld, Hartmann, Waldorf, & Vocks, 2020, DOI: https://doi.org/10.1186/s40337-020-00345-w). Moreover, the sample analyzed in the present paper partly overlaps with a peer reviewed and formally published study by Arkenau, Vocks, Taube, Waldorf and Hartmann (2020, DOI: https://doi.org/10.1002/jclp.22933). In this study, data from male participants (gay or heterosexual) on several measures that were also included in our paper (i. e., Body Appreciation Scale‐2 (BAS‐2; Tylka & Wood‐Barcalow, 2015), Drive for Thinness subscale (DTS) of the Eating Disorder Inventory‐2 (EDI‐2; German version: Paul & Thiel, 2005), Drive for Leanness Scale (DLS; Smolak & Murnen, 2008), Drive for Muscularity Scale (DMS; German version: Waldorf, Cordes, Vocks, & McCreary, 2014), Body Image Disturbance Questionnaire (BIDQ; German version: Hartmann, 2019), Dysmorphic Concern Questionnaire (DCQ; German version: Stangier, Janich, Adam‐Schwebe, Berger, & Wolter, 2003), Eating Disorder Examination‐Questionnaire (EDE‐Q; German version: Hilbert & Tuschen‐Caffier, 2016) were used to validate the Body Image Matrix of Thinness and Muscularity − Male Bodies (BIMTM-MB), a measure that was not included in our study. Hence, data on shared measures were not used to analyze and compare subgroups (i.e., gay vs. heterosexual men) as we did in our manuscript, but only to calculate convergent validity of the BIMTM-MB. Moreover, our sample partly overlaps with a peer reviewed and formally published study that analyzed appearance-related partner preferences in men and women with different sexual orientations (Cordes, Vocks, & Hartmann, 2021, DOI: https://doi.org/10.1007/s10508-021-02087-5). The study’s main focus was the analyses of group differences on the BIMTM-MB. Moreover, correlations of the BIMTM-MB and the DMS, EDI-2 and the EDE-Q were calculated to analyse associations of appearance-related partner preferences and body image between groups. Hence, data on the DMS, EDI-2 and EDE-Q were not used to analyze and compare group differences on body image as we did in our study. To conclude, our manuscript does not constitute dual publication. For verification purpose please see all open access studies via the DOIs listed.“).

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Upon your advice, we made data from this study available by uploading the minimal anonymized data set necessary to replicate our study findings as a public repository (Open Science Framework). See: DOI 10.17605/OSF.IO/KFYZ7

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Reviewers' comments to the Author:

Reviewer #1:

The language used in this paper is outdated. The use of the term "homosexual" is outdated, pathologizing, and has been historically stigmatizing. Then the authors proceed to use an acronym (HOM) on line 12 (it is noted they also do this for heterosexual men) to further stigmatize.

Please see the notes below from GLADD: an American non-governmental media monitoring organization, founded as a protest against defamatory coverage of LGBT people.

Offensive: "homosexual" (n. or adj.)

Preferred: "gay" (adj.); "gay man" or "lesbian" (n.); "gay person/people"

Please use gay or lesbian to describe people attracted to members of the same sex. Because of the clinical history of the word "homosexual," it is aggressively used by anti-gay extremists to suggest that gay people are somehow diseased or psychologically/emotionally disordered – notions discredited by the American Psychological Association and the American Psychiatric Association in the 1970s. Please avoid using "homosexual" except in direct quotes. Please also avoid using "homosexual" as a style variation simply to avoid repeated use of the word "gay." The Associated Press, The New York Times and The Washington Post restrict use of the term "homosexual" (see AP & New York Times Style).

From: https://www.glaad.org/reference/offensive

Thank you for this extremely helpful comment! As non-native English speakers, we have not been aware of this and of course replaced the word “homosexual man” with “gay man” throughout the manuscript. Also, we deleted all acronyms referring to gay or heterosexual men.

The authors also seem to be conflating gender and sex with their use of the terms male and men. They need to clearly demonstrate the difference between these two things.

Thank you for giving us the opportunity for clarification. The German language does not differentiate between sex (“Geschlecht”) and gender (“Geschlecht” as well). In our self-report study, we asked participants how they personally refer to themselves in terms of their “Geschlecht”, which we then interpreted as their gender, not their sex. This is why we explicitly stated in the manuscript: “data were gathered on [participant’s] age, gender, nationality […]” (p.20, l. 446 ff.). In the manuscript, we use the term male as the adjective to man for descriptive purposes (e.g. “the male gay community”). We added this information to the manuscript (“Also, we use male as the adjective of man and not to differentiate between gender and sex.”) (p. 12, l. 259 ff.). Please advise if we misunderstood your comment, we are happy to implement further suggestions.

Reviewer #2:

1. Please avoid using the term “homosexual man/men” and “homosexual woman/women.” Instead, use “gay man/men” and “lesbian woman/women.”

Thank you for this important comment. As stated above, we replaced the word “homosexual” with the word “gay” throughout the manuscript.

2. How are the authors operationally defining “gay community”?

Thank you for giving us the opportunity for clarification. First of all, we define “community” as a group of people that has a shared characteristic (Holt, 2011), and in terms of the gay community this shared characteristic is being gay. We added this to our manuscript as follows: “To clarify, we defined gay community as a group of people with the shared characteristic of being gay, and gay community involvement as engaging with other members of the gay community (i. e. gay men) and active participation in gay community spaces and activities, such as attending pride events, visiting a gay bar or reading a gay newspaper [51,57].” (p. 12, l. 255 ff.)

3. Use “scale score reliability” instead of “internal consistency” (i.e., Cronbach’s alpha may be high in situations where item-total correlations are poor).

Thank you for giving us the opportunity to improve our methods section. As we were not sure how to interpret your comment, we sought advise with our statistics expert. He agreed that Cronbach’s alpha is a controversially discussed measure for the reliability of a test, but unfortunately also remained unsure what alternative measure you would suggest. In case you insist on a different measure than Cronbach’s alpha, could you please specify your comment? Thank you in advance. As described for comment 5, we added 95% confidence intervals for all Cronbach’s alpha coefficients.

4. The sample size is quite modest. Do the authors have any idea why recruiting individuals to participate in this study was difficult?

Thank you for giving us the opportunity for clarification. Please keep in mind that we only recruited participants in German-speaking countries, which means that the population that could be targeted was much smaller than if we had conducted our study in a language that is more frequently spoken, like English or Spanish. Moreover, we targeted a quite narrow group of participants (first and foremost people with a sexual orientation other than heterosexuality). Also, we were transparent about the topic of the survey (sexual orientation and body image), which might have discouraged some potential participants from participation due to the ongoing stigma surrounding sexual orientation. Furthermore, in Germany we don’t have access to data collection tools like Amazon Mechanical Turk or Taskrabbit. Generally, budget to compensate study participation is usually small, so researchers rely on intrinsic motivation of potential participants. In our study, participants only had the opportunity to take part in a lottery to win an online shopping voucher (1 out of 10, worth 20 Euros) but no guaranteed compensation was payed. Moreover, budget for study promotion is usually small, which is why we had to limit our advertising activity to university e-mail distribution lists, posters, flyers, voluntary press releases on lesbian, gay, bisexual, and transgender (LGBTQ) websites and Facebook groups. Taken together, the sample size

(n = 838 for the broader project and n = 262 that identified as men and could be included in our study), met our expectations, especially compared to other surveys on sexual orientation in German-speaking countries (e. g. Legenbauer et al. (2009), n = 305 participants from which n = 143 identified as men; Siever (1994), n = 250 participants from which n = 122 identified as men). Also, a priori power analyses indicated that we would need a sample size of n = 111 to detect a medium-sized effect (p = 0.3).

5. 95% confidence intervals should be reported for all Cronbach’s alpha coefficients.

Thank you for the comment, we added 95% confidence intervals for all Cronbach’s alpha coefficients, e. g. p. 15, l. 316: “α = .92, 95% CI [0.91, 0.94]”

6. For all measures, please provide the possible range of scores and indicate whether higher scores represent more (or less) of the construct of interest.

Thanks for the suggestion. We added the possible range of scores und how to interpret scores where they have not already been stated, e. g. p. 15, l. 329: “Larger discrepancies indicate greater perceptual body image disturbance.”.

7. Is the IGCS equally applicable to gay people residing in rural areas (i.e., they may not have access to “gay-affirmative” events)?

Thanks for this interesting question. The IGCS does not make any comments on that. However, especially in a small country like Germany, bigger cities or more progressive areas, where the probability for such activities might be bigger, can usually be accessed in 30 to 60 minutes, even when living on the countryside or in conservative areas. Also, the majority of questions on the IGCS does not depend on participant’s location. Only one item specifically asks about attendance to gay affirmative-events. Therefore, we do not expect the item to have massively biased our results.

8. How was “sexual orientation” measured?

Sexual orientation was measured via self-report of the participants. They were able to choose from a range of different categories of sexual orientation (although we explicitly acknowledged that sexual orientation is a continuum), or type in their sexual orientation in a text field if none of the categories met their sexual orientation. We clarified this in the manuscript as follows: “Sexual orientation was measured via self-report of the participants. They were able to choose from a range of different categories of sexual orientations (gay, lesbian, heterosexual, bisexual, pansexual, polysexual, asexual), although we explicitly acknowledged that sexual orientation is a continuum. If none of the categories met their sexual orientation, participants could type in their sexual orientation in a text field.” (p. 20, l. 442 ff).

9. On page 15, the authors refer to sexual orientation as an “independent variable.” Technically, this is inaccurate as a person’s sexual orientation cannot be manipulated.

Thanks for making us aware of this. As we deleted the mediation analyses as suggested by Reviewer #3, the comment has become obsolete.

10. What sort of follow-up analysis was used to determine the source of the statistically significant chi-square test? (see Sharpe, D. [2015] "Chi-Square test is statistically significant: Now what?," Practical Assessment, Research, and Evaluation: Vol. 20 , Article 8.

DOI: https://doi.org/10.7275/tbfa-x148

Thank you for this important suggestion. We added the following follow-up analysis of the chi-square test: “In case of a significant χ2 test, adjusted residuals were calculated and checked to locate the source of the significance. An adjusted residual with an absolute value that exceeded +/- 1.96 indicated lack of fit of the Null-hypothesis, i.e. significance [78].” (p. 21, l. 456 ff.) The result of the follow-up analyses, as stated in the manuscript, was as follows: “The observation of the adjusted residuals suggested that the rejection of the Null-hypothesis [regarding highest educational attainment] resulted as, compared to heterosexual men, a larger number of gay men had no higher-track secondary school qualification than statistically expected.” (p. 23, l. 505 ff.)

11. Table 2: p values should not be reported as .000

We changed the p-value to “< .001” (see Table 2)

12. Do the authors have any idea why mean scores on the EDS were so low (1.82 and 1.80)? Were there a subset of EDS items that participants reported experiencing more frequently? If so, should those be used grouped and treated as a standalone indicator of discrimination. Another possibility would be to take the item that was endorsed most often and compare that group to participants who did not experience the specific episode of discrimination.

Thank you for the interesting question that we were happy to follow up on. Detailed analysis of the dataset led to the following results: First of all, possible item scores on the EDS range from 1 (“Never [have I experienced such a discrimination experience]”) to 6 (“Almost every day [do I experience such a discrimination experience]”). In our study, mean scores of the individual items of the EDS ranged from M = 0.03 to M = 2.18 in the group of gay men and from 0.05 to 2.45 in the group of heterosexual men. The median throughout items in the group of gay men was 1.83 and in the group of heterosexual men 1.67. The three items with the highest mean scores were exactly the same in both groups (No 1. “People pretending to be better than you”, gay men: M = 2.39, SD = 1.28, heterosexual men M = 2.45, SD = 1.40);

No 2. “You are treated less polite than other people”, gay men: M = 2.18, SD = 1.25, heterosexual men M = 2.07, SD = 1.28; No 3. “You are treated with less respect than other people”, gay men: M = 2.18, SD = 1.10, heterosexual men M = 1.99, SD = 1.21). This indicates an overall low score of possible discrimination experiences throughout all items in both groups. So overall, our sample does not experience any frequent discrimination experiences, and the two subgroups did not differ in this regard. Therefore, further analyses of single items did not appear promising.

13. It would be helpful if the authors briefly explained how two group equivalence is determined, and the ways in which equivalence testing and standard hypothesis testing differ.

Thank you for the suggestion. We described the procedure and the difference to standard

t-testing in more detail: “To test for equivalence of groups, two one-sided t-tests (TOST) were calculated. This test is a variation of the standard one-sided t-test, that examines whether the hypothesis that the difference between two groups is zero can be rejected. The TOST, however, examine whether the hypothesis that the difference between groups is meaningful (i. e., at least as extreme as the smallest effect size of interest) can be rejected. The smallest effect size of interest was set using established benchmarks [81], namely at d = 0.2, which represents a trivially small effect size [80]. Groups are considered equivalent when both of the two one-sided t-tests are statistically significant. In the case of heterogeneity of variance, Welch’s tests were employed.” (p. 21, l. 467).

14. The mean score for the IGCS was 2.91 (near the scale midpoint of 3). Do the authors have any idea why gay men did not report being more invested in the gay male community? (Can lower than expected involvement be linked with COVID-19?)

That is an interesting question. The COVID-19 pandemic can not have influenced the results as the study was conducted from 2017 to 2018. Moreover, the authors of the IGCS report a mean score of M = 3.09 in a male gay sample in the validation of the IGCS, which is close to the score that we found in our study. Therefore, we interpret our gay sample to be ordinarily engaged in the gay community.

15. Related to point 14, were there certain items on the IGCS for which gay participants reported high levels of involvement?

To clarify, the IGCS does not only measure involvement, but also identification with the gay community. In the manuscript we discussed this as a possible reason for the non-significant association of the IGCS and body image disturbances in our gay sample, as predominantly involvement with the gay community “is suspected to convey specific unrealistic body ideals that contribute to body discontent” (p. 41, l. 790 ff). As the authors of the IGCS do not clearly define which items refer to involvement and which items refer to identification with the gay community, we were not able to calculate subscales to test for this hypothesis. We added this information to the manuscript (“Since the authors of the IGCS do not clearly define which items refer to involvement and which items refer to identification with the gay community, we were not able to calculate subscales to test for this hypothesis”, p. 41, l. 793 ff) To come back to your question, mean scores of the individual items of the IGCS ranged from M = 1.65 to M = 3.72. The two items with the lowest scores refer to the attendance of LGBTQ events

(M = 1.65, SD = 1.04) or LGBTQ bars/discotheques (M = 1.83, SD = 0.94). The two items with the highest scores are “Being attracted to men is important to my sense of who I am” (M = 3.72, SD = 1.13) and “How often do you read a gay oriented (online-)paper or magazine, or visit websites that focus on being gay?” (M = 3.46, SD = 1.39).

16. Did the authors use any quality control items in their survey (e.g., “For this question, please select ‘strongly agree.’”)

Thanks for this valid question. No, we did not use any quality control items. As stated above, we did not use any data collection tools like Amazon Mechanical Turk or Taskrabbit that increase chances for reduced data quality due to the incentive system of the tools. Participants did not get any compensation for participation but only had the opportunity to take part in a lottery to win an online shopping voucher (1 out of 10, worth 20 Euros). Hence, we expected participants to take part in the survey due to an intrinsic motivation to support research in the field of sexual orientation and body image. Therefore, we expected participants to answer sincerely and did not see an urgent need to implement quality control items. Nevertheless, we visually checked data for conspicuous answering patterns but did not find any anomalies. We added that information in the manuscript for clarification (“Further visual observation of data did not detect any conspicuous answering patterns”, p. 13, l. 277 ff.; “Upon completion, participants were given the opportunity to take part in a lottery to win an online shopping voucher (1 out of 10, worth 20 Euros). No further compensation for participation was payed.”, p. 15, l. 307 ff.). Nevertheless, to further improve data quality, we will consider implementing data control items in our next survey.

17. A diagrammatic representation of the mediation models would be informative.

Thanks for this suggestion. However, we deleted the mediation analyses upon recommendation by Reviewer #3.

18. In the summary, the authors should reiterate the value of this manuscript in terms of the incremental advances it offers.

Thanks for the comment. We made the following changes: “The present study contributes to the extensive, yet narrow research on body image in gay men by systematically examining multiple dimensions of body image disturbance in gay and heterosexual men as well as associated pathologies, including the under-investigated BDD pathology. Overall, the results suggest that gay men not only show more body dissatisfaction than heterosexual men but a significantly higher multidimensional body image disturbance affecting cognitions, emotions, behaviors, and perception. This might be especially true for facets linked to body weight and thinness, suggesting the dilemma of a paradoxically thin, yet muscular body ideal for gay men, that might not even be dissolved in a lean body. In accordance with that, gay man also showed significantly higher ED and BDD pathology for which body image disturbance poses an eminently relevant risk factor [10,11]. However, differences in body image might not be associated with the frequency of everyday discrimination experiences and cross-subgroup involvement with the gay community.” (p. 43, l. 844 ff.). Also, we changed the order of the introduction to stress the focus of the paper and the research gap it aims to close.

Reviewer #3:

The current study examined differences in body image constructs between gay and heterosexual men in German-speaking countries and whether the relationship between sexual orientation and body image facets was mediated by discrimination experiences and gay community involvement. I’m concerned about the rigor of this paper for two reasons: One, that the introduction seems to omit important previous literature, and two, that the methods are somewhat opaque.

General Comments

1. I encourage the authors to adhere to APA standards for bias-free language, especially when speaking about sexual minority individuals: https://apastyle.apa.org/style-grammar-guidelines/bias-free-language/sexual-orientation

In particular, the APA recommends not using “homosexual” and instead using “gay.”

Thanks a lot for making us aware of that! We changed the word “homosexual” to “gay”.

2. Having read the whole paper at this point, I find the title to be misleading as the mediation analyses are only a small part of the overall focus of this paper.

Thank you for this valid comment. As we deleted the mediation analyses (see comment 13), we changed the title to “Body image disturbance and associated eating disorder and body dysmorphic disorder pathology in gay and heterosexual men: A systematic analyses of cognitive, affective, behavioral und perceptual aspects” to better fit the focus of the manuscript.

Abstract

3. It’s unclear what “discrimination experiences” consist of for heterosexual men.

Thanks for making us aware of that. The Everyday Discrimination Scale (EDS) used in the study does not only measure discrimination experiences specifically linked to sexual orientation. We expanded on that in the method section of our manuscript (“The tenth item asks about the specific self-suspected reason for discrimination, like age, nationality, or sexual orientation. Therefore, the EDS does not only apply to discrimination experiences based on sexual orientation.”, p. 20, l. 435 ff.). Also, we added the prefix “general everyday discrimination experiences” in the abstract to make this clearer (e. g. p. 3, l. 27).

4. The mesomorphic ideal consists of both low body fat and high muscularity. As all men are subject to these pressures, I fail to see how differences in facets linked to body fat are explained by the pressures to achieve the mesomorphic ideal.

Thanks for your comment. By referring to the mesomorphic ideal, we tried to explain why we found no difference between our gay and heterosexual sample in terms of the cognitive and behavioral drive for muscularity. You are right, our result that gay men had an elevated drive to be thin (not to be confused with lean, which refers to an athletic physique with low body fat and visible muscularity), cannot be explained by the mesomorphic ideal. To prevent confusion, we deleted this aspect from the abstract and described our interpretation of the findings regarding the body ideal in gay vs. heterosexual men in the discussion of the manuscript as follows: “The results [of both a drive to be thin and to be muscular in gay men] contradict findings proposing that the drive for a thin body is a “female” body image issue [85,87,88] and underlines the paradox of a highly light-weight, yet wide and muscular body ideal for gay men [17]. This rather unattainable body ideal might cause a dilemma influencing the highly elevated body dissatisfaction in gay men.” (p., 36, l. 680ff). Also, we described the differentiation between drive for thinness, leanness and muscularity in the introduction in more detail: “In more detail, gay men seem to strive more strongly for a thin body (i. e., low body weight) [17,21,22], although some studies have reported similar levels of drive for thinness between gay and heterosexual men [20]. At the same time, there appears to be no difference between gay and heterosexual men in drive for muscularity (i. e., a muscular, broad physique) [19,20]. However, previous studies did not differentiate their results in terms of muscle-related cognitions and muscle-related behaviors, with the latter being better categorized as part of behavioral body image disturbance [3]. Concerning the drive for a lean body (i.e., a trained, tight physique), no comparative study exists.” (p. 6, l. 104 ff.)

Introduction

5. There are much more recent citations to assert the fact that gay men are at higher risk of body image disturbance than the Beren paper. I suggest:

He, J., Sun, S., Lin, Z., & Fan, X. (2020). Body dissatisfaction and sexual orientations: A quantitative synthesis of 30 years research findings. Clinical Psychology Review, 81, 101896. https://doi.org/10.1016/j.cpr.2020.101896

Thank you for the suggestion. We implemented this valuable citation as follows: “For example, a quantitative synthesis of 30 years of research findings on body dissatisfaction and sexual orientation found significantly higher body dissatisfaction in sexual minority men than in heterosexual men [15], that might be similarly high [16] or even higher [17] than in heterosexual women.” (p. 5, l. 772 ff.).

6. The authors state that “most studies” did not differentiate their results between cognition and behavior. Are the authors aware of studies that did? If so, these should be cited, and their results should be explained.

Thanks for pointing that out. Indeed, to our knowledge none of the studies that compared gay and straight men regarding drive for muscularity differentiated their results in terms of muscle-related cognitions and muscle-related behaviors. Therefore, we erased the word “most” and apologize for the confusion.

7. There are more studies that examine figure rating scales in gay and heterosexual men. See:

Tiggemann, M., Martins, Y., & Kirkbride, A. (2007). Oh to be lean and muscular: Body image ideals in gay and heterosexual men. Psychology of Men & Masculinity, 8(1), 15–24. https://doi.org/10.1037/1524-9220.8.1.15

Meneguzzo, P., Collantoni, E., Bonello, E., Vergine, M., Behrens, S. C., Tenconi, E., & Favaro, A. (2021). The role of sexual orientation in the relationships between body perception, body weight dissatisfaction, physical comparison, and eating psychopathology in the cisgender population. Eating and Weight Disorders - Studies on Anorexia, Bulimia and Obesity, 26(6), 1985–2000. https://doi.org/10.1007/s40519-020-01047-7

Thanks for your valuable suggestions. We added both studies to our reference list. The paper by Tiggemann et al. (2007) conceptualizes the discrepancy between one’s self-rated current and ideal figure as a distortion of perception (like we did), however Meneguzzo et al. (2021) interpreted the discrepancy as body weight dissatisfaction. Therefore, we listed the latter study in our limitations section, where we noted that “the discrepancy between self-rated current and ideal body could also be interpreted as perceptual body discontent [102,103] and therefore allocated to the cognitive-affective facet of body image disturbance” (p. 42, l. 826 ff.).

8. The authors state that studies “hint at a stronger ED pathology in HOM.” It’s unclear what this means.

Thanks for giving us the opportunity for clarification. We added the following information: “Studies have indeed found higher prevalence rates of EDs in gay men compared to heterosexual men [32,33] as well as a more pronounced ED pathology [e.g., 20,34]. Also, gay men appear to exhibit more severe ED symptoms such as binge eating [34], purging behavior [35], restrictive eating [36,31], and taking weight-reducing supplements [35]. (p. 7, l. 140 ff.)

9. I suggest an additional citation for discrimination, gay community involvement, eating disorders, and BDD:

Convertino, A. D., Brady, J. P., Albright, C. A., Gonzales IV, M., & Blashill, A. J. (2021). The role of sexual minority stress and community involvement on disordered eating, dysmorphic concerns and appearance- and performance-enhancing drug misuse. Body Image, 36, 53–63. https://doi.org/10.1016/j.bodyim.2020.10.006

Thank you for giving us the opportunity to update our introduction section. We included the paper and its further implications as follows: “Besides discrimination, it is assumed that pressure from within the gay community to be attractive and muscular might also contribute to elevated body image concerns among gay men [45,46]. According to the intraminority stress theory [45], masculinity and attractiveness are means to gain status among the gay community, leading to appearance-based comparisons and competition with other community members, as well as pressure to conform to an attractive and muscular body ideal. This pressure is said to be further reinforced as gay and bisexual men usually rely on other men from within their sexual minority community for sexual and social relationships [45]. Therefore, sexual minority community involvement has been linked to negative body image outcomes among sexual minority men [46]. For example, Hospers and Jansen [48] found increased pressure to conform to appearance standards in order to attract sexual partners within the gay community. Furthermore, Convertino et al. [49] reported elevated rates of disordered body image behaviors and concerns depending on gay community involvement.” (p. 9, l. 175 ff.).

Methods

10. Given that it’s an online survey, what kind of data quality checks, checks for repeat participants, etc. were administered? I’m concerned about the quality of the data.

Thanks for this valid question. As we pointed out above, we did not use any quality control items. Participants did not get any compensation for participation in the 35-minutes-long survey, but only had the opportunity to take part in a lottery to win an online shopping voucher (1 out of 10, worth 20 Euros). Also, we did not use any data collection tools like Amazon Mechanical Turk or Taskrabbit that increase chances for reduced data quality due to the incentive system of those tools. Hence, we expected participants to take part in the survey due to an intrinsic motivation to support research in the field of sexual orientation and body image. Therefore, we expected participants to answer sincerely and did not see an urgent need to implement quality control items. Nevertheless, we visually checked data for conspicuous answering patterns but did not find any anomalies. We added that information in the manuscript for clarification (“Further visual observation of data did not detect any conspicuous answering patterns”, p. 13, l. 277; “Upon completion, participants were given the opportunity to take part in a lottery to win an online shopping voucher (1 out of 10, worth 20 Euros). No further compensation for participation was payed.”, p. 15, l. 307 ff.). Nevertheless, to further improve data quality, we will consider implementing data control items in our next survey.

11. In your measures section, please cite any available studies that support the validity of these measures in heterosexual and gay men. Further, any studies that validate the German translations would also be helpful. If none are available, please provide your translation procedures in supplemental materials. I suggest following this paper for guidance:

Swami, V., & Barron, D. (2019). Translation and validation of body image instruments: Challenges, good practice guidelines, and reporting recommendations for test adaptation. Body Image, 31, 204–220. https://doi.org/10.1016/j.bodyim.2018.08.014

Thanks a lot for your suggestions. If available, we provided studies that support the validity of our measures in sexual minority men:

• Body Appreciation Scale-2: “The BAS-2 has been validated for the use with a male and female sexual minority sample could [65]” (p. 15, l. 318 ff.)

• Bodybuilder Image Grid-Original (BIG-O): “The BIG-O is validated for the use in a male sample [28] and has been used in studies investigating body image in gay men (e.g., [31]).” (p. 16, l. 332)

• Body Image Coping Strategies Inventory: “The BICSI is validated for the use in a male sample [60] but has not yet been validated or used for a gay sample.” (p. 16, l. 344 ff.)

• Body Image Disturbance Questionnaire: “The BIDQ is validated for the use in a male sample [66] but has not yet been validated on or used for a gay sample.” (p. 17, l. 357)

• Dysmorphic Concern Questionnaire: “The DCQ has been validated for the use with a sexual minority sample [69]” (p. 17, l. 364)

• Drive for Leanness Scale: “The DLS is validated for the use in a male sample [71] but has not yet been validated on or used for a gay sample.” (p. 17, l. 372)

• Drive for Muscularity Scale: “The DMS has been validated for the use with a male sexual minority sample [72]” (p. 18, l. 387 ff.)

• Drive for Thinness Scale: “The DTS has not yet been validated for the use in a gay sample but has been used in studies investigating body image in gay men (e.g., [20])”

• Eating Disorder Examination-Questionnaire: “The EDE-Q has been validated for the use with a male sexual minority sample [75].” (p. 19, l. 410)

• Gender-Neutral Body Checking Questionnaire: “The GNBCQ has been validated on a male, but not on a sexual minority sample [61].”(p. 19, l. 419 ff.)

• The Everyday Discrimination Scale: “The EDS has not yet been validated or used on a gay sample.” (p. 20, l. 441)

Furthermore, as we could not provide validation studies on a sexual minority sample for all instruments we used, we calculated internal consistency of our measures for both groups separately and added this information to our measures section. With the exception of the Body Image Coping Strategies Inventory, subscale Avoidance, all scales yielded high to excellent internal consistency for the gay and heterosexual subgroup, respectively. The subscale Avoidance yielded acceptable internal consistency for both subgroups, however it also only yielded acceptable internal consistency in the original validation study.

Regarding our translation process: we used Brislin`s (1970) back-translation to translate measures where no German version was available. A bilingual translator (German – English) blindly translated (i.e., forward-translated) the original English language measure, including instructions and response categories, to German. Then, a second bilingual translator independently back-translated the instrument from German to the original English language. Afterwards, the two language versions of the measurement (i.e., the original English and back-translated English versions) were compared for conceptual, item, semantic, and operational equivalence. If discrepancies occurred, another translator tried to retranslate the relevant item. This process was continued until all bilingual translators agreed that the two versions of the instrument are identical. We added the translation procedure to our methods section (p., 14, l. 293 ff)

The guidelines presented in the Paper by Swami and Barron (2019) present a valuable a priori procedure that we unfortunately did not follow. We stated this as a limitation of our study in the discussion section: “Also, as there were no previously validated German language versions of the Body Appreciation Scale - 2 [64], the Body Image Coping Strategies Inventory [60], the Drive for Leanness Scale [70], the Gender Neutral Body checking Questionnaire [61], the Identification with Gay Community Scale [57] and The Everyday Discrimination Scale [62] we had to translate those by ourselves via back-translation [63]. We did not conduct a comprehensive validation procedure of the translated measures, but the internal consistencies of the translated measures merely differ from those of the originals.” (p. 43, l. 836 ff.).

12. I would not recommend the Benjamini-Hochberg correction to be separated by “grouping” of outcomes. I’ve never seen it employed this way, and probably increases the false discovery rate. I also wonder how it was employed as there is no mention of this in the results section.

Thank you for your comment that we are happy to follow. We performed the Benjamini-Hochberg correction without grouping of outcomes and reported the newly adjusted p-values in Table 2. Also, in the table notes we added that the reported p-values are Benjamini-Hochberg adjusted.

13. The authors test indirect effects/mediation within a cross-sectional design. These indirect effects are not particularly meaningful in such designs. The authors may find the below readings helpful on this topic:

Maxwell, S. E., & Cole, D. A. (2007). Bias in cross-sectional analyses of longitudinal mediation. Psychological Methods, 12(1), 23–44. https://doi.org/10.1037/1082-989X.12.1.23

Maxwell, S. E., Cole, D. A., & Mitchell, M. A. (2011). Bias in Cross-Sectional Analyses of Longitudinal Mediation: Partial and Complete Mediation Under an Autoregressive Model. Multivariate Behavioral Research, 46(5), 816–841. https://doi.org/10.1080/00273171.2011.606716

Thank you for your comment. You are right, as we did not use longitudinal data, mediation analyses might be biased. After careful consideration, we deleted to mediation analyses from the manuscript.

Results

14. The results section is incredibly difficult to read with so many abbreviations. In general, I would suggest that results are reported in terms of constructs with scale abbreviations in parentheses to facilitate reader experience.

Thank you for making us aware of this. We put the abbreviations in parentheses after naming the actual construct (e. g. “total eating disorder pathology (EDE-Q total score)”, p. 28, l. 564)

15. In tables 5 and 6, there is a table note that says that significant effects are bolded. This is not true.

Thank you for your comment. You are correct, in table 5 and 6 no effects are marked in bold as there have not been any significant effects. We understand that this might cause confusion and deleted the note (see Table 5)

Discussion

16. The authors gloss over the finding that drive for thinness was higher among gay men than heterosexual men. What do the authors make of this finding?

We added the following discussion of the above-mentioned finding: “The results contradict findings proposing that the drive for a thin body is a “female” body image issue [85,87,88] and underlines the paradox of a highly light-weight, yet wide and muscular body ideal for gay men [17]. This rather unattainable body ideal might cause a dilemma influencing the highly elevated body dissatisfaction in gay men.” (p. 36, l. 687 ff.)

17. How can the test neither establish “statistical equality nor statistical differences”? What’s the point of running the test then?

Thanks for giving us the opportunity for clarification. The two one-sided t-tests (TOST) that we ran to check for statistical equivalence of groups is a variation of the standard one-sided t-test. The t-test examines whether the hypothesis that the difference between two groups is zero can be rejected. The TOST, however, examines whether the hypothesis that the difference between groups is meaningful (i. e. at least as extreme as the smallest effect size of interest) can be rejected. In our study, firstly we ran a TOST to check for equivalence of groups. After the TOST was non-significant, indicating that groups were not statistically equivalent, we ran a one-sided t-test to check if groups significantly differed from each other. Again, this test was not significant, indicating that groups were neither significantly equal, nor significantly different from each other. This indicates that the difference between the two groups is somewhere between zero and the smallest effect size of interest. As such, it is not possible to sufficiently interpret those results. We described this procedure in more detail in the method section and in the results section (“To test for equivalence of groups, two one-sided t-tests (TOST) were calculated. The test is a variation of the standard one-sided t-test, that examines whether the hypothesis that the difference between two groups is zero can be rejected. The TOST, however, examine whether the hypothesis that the difference between groups is meaningful (i. e. at least as extreme as the smallest effect size of interest) can be rejected. The smallest effect size of interest was set using established benchmarks [81], namely at d = 0.2, which represents a trivially small effect size [80]. Groups are considered equivalent when both of the two one-sided t-tests are statistically significant. In case the TOST was non-significant, indicating that groups are not statistically equivalent, a one-sided t-test was run to check if groups significantly differed from each other.” p. 21, l. 468.; “The equivalence tests (TOSTs) as well as the null-hypothesis tests (one-sided t-tests) regarding the discrepancy between current and ideal muscularity (BIG-O subscale) and muscle-related behavior (DMS subscale) were both non-significant., This indicates that groups were neither statistically equal, nor significantly different from each other. Hence, the difference between the two groups was somewhere between zero and the smallest effect size of interest that was previously set. As such, it is not possible to sufficiently interpret those results.”, p. 25, l. 528 ff.).

Also, we described the problem as a limitation in our discussion section: “Lastly, we found neither statistical equivalence nor significant differences between the groups regarding behavioral drive for muscularity and discrepancy between self-rated current and ideal body fat. This might be due to our method of determining the smallest effect size of interest, which was based on established benchmarks (Cohen`s effect size conventions [80]), and not on related studies in the literature or individual, empirical considerations [81]. As such, it is not possible to sufficiently interpret the results, p. 43, l. 844“).

18. I would like to see a citation supporting the statement that “relationships among HOM may be focused on physical relationships rather than on creating a family.” How is this a difference between gay and heterosexual men?

Thanks for raising this question. We described our point in more detail as follows: “Lastly, it was argued that intracommunity pressure to conform to a certain body ideal stems from the wish to attract other members of the community for sexual and social relationships [45]. However, 42% of gay men in our study were in a committed relationship, which was a similar quantity as in heterosexual men. This may have lessened the pressure from the male gay community on our gay sample to stay attractive.” (p., 42, l. 811 ff.)

19. Please list additional limitations with the use of perceptual measures as they are numerous. Also, the lack of validation of these measures in the German language and gay and heterosexual men if that validation is lacking.

Thank you for your comment. We added the following limitations for the use of figural drawing scales to measure perceptual body image distortion: “Regarding the use of a figural drawing scale to measure perceptual body image distortion, general limitations of these measures include that scales only display hand-drawn und therefore less detailed body images, that are based on an artist’s subjective belief of varying body weight and muscularity. Also, those measures only depict a limited set of varying bodies, while in reality body shape is a continuous variable [58]. Those aspects might have limited the validity of our results.” (p. 42, l. 825). As stated for comment 11, we also added the lack of proper validation of the back-and-forth translated measures as a limitation of our study.

Attachment

Submitted filename: Response to Reviewers_PONE-D-21-24159.docx

Decision Letter 1

Masaki Mogi

21 Sep 2022

PONE-D-21-24159R1Body image disturbance and associated eating disorder and body dysmorphic disorder pathology in gay and heterosexual men: A systematic analyses of cognitive, affective, behavioral und perceptual aspectsPLOS ONE

Dear Dr. Schmidt,

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The authors adequately responded to the Reviewers' comments.However, minor revisions are necessary for the presentation of the study.

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Reviewer #3: Thank you for the opportunity to read the revised manuscript entitled “Body image disturbance and associated eating disorder and body dysmorphic disorder pathology in gay and heterosexual men: A systematic analyses of cognitive, affective, behavioral und perceptual aspects.” I find that the paper has been much improved through the review process and am impressed by the authors responsiveness to reviews.

General comments:

1. To continue the commentary on gender and sex differentiation in this paper, I appreciate the consideration that the authors have already paid, and challenges related to language differences across English and German. I would also still encourage the authors to avoid the term “male” when possible, even as an adjective, due to specific language differentiation in English. Therefore, I would encourage the removal of the sentence: “Also, we use male as the adjective of man and not to differentiate between gender and sex” and instead rephrase to avoid using male. (E.g., “…Buhlmann and colleagues found that 27% of MEN IN THE STUDY reported at least one body-related concern…” as opposed to “…Buhlmann and colleagues found that 27% of MALE PARTICIPANTS reported at least one body-related concern…”

Abstract

2. “Extensive, yet narrow” is a confusing phrase that the authors use multiple times throughout the paper now. Narrow is an antonym of extensive and therefore, this is somewhat oblique in meaning. I would encourage the authors to use a different phrase. If the literature is quantitively large, but narrow in scope, that is the phrase I would use.

Introduction

3. On page 4, line 81-82, the authors state that no studies have compared drive for leanness between gay and heterosexual men. This is not strictly true, although their analysis do make interpretation difficult. See:

Strübel, J., & Petrie, T. A. (2019). Appearance and performance enhancing drug usage and psychological well-being in gay and heterosexual men. Psychology & Sexuality, 10(2), 132–148. https://doi.org/10.1080/19419899.2019.1574879

4. I have a bit of a quibble with the assertion on page 4, line 85. Exercise behavior varies widely in terms of its goals and outcomes. Patients with anorexia who are solely focused on thinness concerns often engage in exercise to lose weight or avoid weight gain. In that context, exercise behavior is not geared towards gaining muscle, but rather losing fat. Thus the phrase on line 85 conflates exercise as only muscle-related when this is, in fact, not the case.

5. I’m somewhat surprised that nowhere in the introduction is a mention of muscle dysmorphia. BDD broadly is associated with body image concerns, but when those concerns are narrowed to muscularity, individuals are often diagnosed with muscle dysmorphia. This does not need to be a main point of the introduction, but I think it’s worth a mention.

6. I find the term “male gay community” to be somewhat of a misnomer. The items on the Identification and Involvement With the Gay Community Scale actually explicitly include items mentioning gay, lesbian, and bisexual individuals, and can therefore be of varying gender identities. I would encourage the authors to remove the descriptor “male” from describing this scale. “Gay” can often be used as a blanket term for individuals that are not heterosexual, but I would also encourage the authors to refer to this construct as “sexual minority community” to fully describe its facets.

Methods

7. Continuing from my above comment, the description of the IGCS seems again to be limited to only men, but in fact, interactions with other genders within the community would also appear to count toward this scale. Please rephrase to ensure accuracy.

Results

8. Table 3 still has HOM and HEM as abbreviations.

Discussion

9. On page 32, lines 656-661, the authors argue from the place that being in a relationship means that gay men are not looking for partners. This is an untenable assumption given that polyamorous (consensual non-monogamous) relationships exist and are considered by participants to be committed. I suggest that the authors rephrase to such that men in committed relationships may be less concerned with attracting new partners.

10. The phrase “…but the internal consistencies of the translated measures merely differ from those of the originals” is confusing. Maybe rephrase to “…but the internal consistencies of the translated measures are similar to the original validation studies.”

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Reviewer #3: No

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PLoS One. 2022 Dec 6;17(12):e0278558. doi: 10.1371/journal.pone.0278558.r004

Author response to Decision Letter 1


4 Nov 2022

Revised response to Editor and Reviewers

Manuscript: Body image disturbance and associated eating disorder and body dysmorphic disorder pathology in gay and heterosexual men: A systematic analyses of cognitive, affective, behavioral und perceptual aspects (PONE-D-21-24159)

Dear Editor and Reviewer,

thank you for the opportunity to respond to any remaining comments. We did our best to respond to your remarks. Please find detailed comments on your remarks and their implementation in the manuscript underneath each notation. The page references refer to the version of our manuscript with track changes.

Editor’s comments to the Author:

1. Please review your reference list to ensure that it is complete and correct. If you have cited papers that have been retracted, please include the rationale for doing so in the manuscript text, or remove these references and replace them with relevant current references. Any changes to the reference list should be mentioned in the rebuttal letter that accompanies your revised manuscript. If you need to cite a retracted article, indicate the article’s retracted status in the References list and also include a citation and full reference for the retraction notice.

We thoroughly checked our reference list for any papers that had been retracted. Fortunately, that was not the case for any manuscript that we cited.

Reviewers' comments to the Author:

Reviewer #3:

1. To continue the commentary on gender and sex differentiation in this paper, I appreciate the consideration that the authors have already paid, and challenges related to language differences across English and German. I would also still encourage the authors to avoid the term “male” when possible, even as an adjective, due to specific language differentiation in English. Therefore, I would encourage the removal of the sentence: “Also, we use male as the adjective of man and not to differentiate between gender and sex” and instead rephrase to avoid using male. (E.g., “…Buhlmann and colleagues found that 27% of MEN IN THE STUDY reported at least one body-related concern…” as opposed to “…Buhlmann and colleagues found that 27% of MALE PARTICIPANTS reported at least one body-related concern…”

Thank you for your valuable suggestion. We gladly accept your suggestion (“A representative German study by Buhlmann and colleagues found that 27% of men in the study reported at least one body-related concern”, p. 4, l. 67) and also deleted the term “male” throughout the rest of the manuscript (with one exception, see comment no. 6), e.g. “The BAS-2 has been validated for the use with sexual minority men and women” as opposed to “The BAS-2 has been validated for the use with a male and female sexual minority sample”, p. 16, l. 328. Accordingly, we removed the sentence: “we use male as the adjective of man and not to differentiate between gender and sex” from our manuscript.

2. “Extensive, yet narrow” is a confusing phrase that the authors use multiple times throughout the paper now. Narrow is an antonym of extensive and therefore, this is somewhat oblique in meaning. I would encourage the authors to use a different phrase. If the literature is quantitively large, but narrow in scope, that is the phrase I would use.

You are right, thanks for making us aware of that and suggesting a more specific term. We were happy to exchange the term throughout the manuscript (e.g. p. 3, l. 23).

3. On page 4, line 81-82, the authors state that no studies have compared drive for leanness between gay and heterosexual men. This is not strictly true, although their analysis do make interpretation difficult. See:

Strübel, J., & Petrie, T. A. (2019). Appearance and performance enhancing drug usage and psychological well-being in gay and heterosexual men. Psychology & Sexuality, 10(2), 132–148. https://doi.org/10.1080/19419899.2019.1574879

Thanks for making us aware of this study. We included it in our manuscript (“Concerning the drive for a lean body (i.e., a trained, tight physique), only one comparative study exists, indicating that gay men have a stronger drive for leanness than heterosexual men”, p. 6, l. 104).

4. I have a bit of a quibble with the assertion on page 4, line 85. Exercise behavior varies widely in terms of its goals and outcomes. Patients with anorexia who are solely focused on thinness concerns often engage in exercise to lose weight or avoid weight gain. In that context, exercise behavior is not geared towards gaining muscle, but rather losing fat. Thus the phrase on line 85 conflates exercise as only muscle-related when this is, in fact, not the case.

You are right, this statement might be too restrictive. We changed the sentence to: “In contrast to the cognitive-affective component of body image, only a small number of studies have focused on the behavioral component of body image disturbance in gay men, and if so, predominantly on exercise behavior.” (p. 6, l. 108)

5. I’m somewhat surprised that nowhere in the introduction is a mention of muscle dysmorphia. BDD broadly is associated with body image concerns, but when those concerns are narrowed to muscularity, individuals are often diagnosed with muscle dysmorphia. This does not need to be a main point of the introduction, but I think it’s worth a mention.

That is a valid point. We added the following section to our introduction: “Regarding muscle dysmorphia, a subtype of BDD characterized by a pathological concern about one’s muscularity, evidence is equally limited. For instance, in a validation study of the Muscle Dysmorphic Disorder Inventory (MDDDI [39]), sexual minority men reported qualitatively higher MDDI total scores than heterosexual men [40]. Furthermore, in a recent Italian study [41] nearly 9% of sexual minority men exhibited a high risk of being diagnosed with muscle dysmorphia, which was again, higher than that found in heterosexual samples.” (p. 8, l. 154)

6. I find the term “male gay community” to be somewhat of a misnomer. The items on the Identification and Involvement With the Gay Community Scale actually explicitly include items mentioning gay, lesbian, and bisexual individuals, and can therefore be of varying gender identities. I would encourage the authors to remove the descriptor “male” from describing this scale. “Gay” can often be used as a blanket term for individuals that are not heterosexual, but I would also encourage the authors to refer to this construct as “sexual minority community” to fully describe its facets.

Thank you for bringing this up. The Identification and Involvement with the Gay Community Scale (IGCS) does mention reading gay or lesbian oriented paper or magazine, or attending gay or lesbian organizational activities (presumably as those usually address the LGBTQ+ community as a whole, and not only the gay community), but overall, the scale is explicitly “designed to measure involvement with and perceived closeness to the gay community among men who have sex with men” and not within the lesbian or any other sexual minority community (Vanable et al., 2011). This was of utterly importance to us, as the gay and the lesbian communities seem to have opposite effects on community member’s body image. While affiliation with the lesbian community seems to decrease body image concerns (e.g. Henn et al., 2019), affiliation with the gay community seems to increase body image concerns (e.g. Pachankis et al., 2020; Tylka et al., 2012). As the term “gay” can be used for all genders (as you already mentioned), we wanted to avoid ambiguousness by adding the word “male”. In doing so, we followed the APA guidelines for bias free language, that state: “The terms gay as an adjective and gay person as a noun have been used to refer to both males and females. However, these terms may be ambiguous in reference [..]. Thus, it is preferable to use gay or gay person only when prior reference has specified the gender composition of this term”. And further: “Lesbian and gay male are preferred to the word homosexual when used as an adjective referring to specific persons or groups, and the terms lesbians and gay men are preferred to homosexuals used as nouns when referring to specific persons or groups” (https://www.apa.org/pi/lgbt/resources/language). As a compromise, we deleted the term male in the term male gay community throughout the manuscript except when describing the scale to specify the gender composition of this term, as requested by the APA. Secondly, we tried to clearly differentiate between the gay and the lesbian community by describing: “Besides discrimination, it is assumed that pressure from within the gay community to be attractive and muscular might also contribute to elevated body image concerns among gay men [44,45]. This is in contrast to findings regarding the lesbian community which seems to act as a protective factor in the development of body dissatisfaction and appearance-related concerns [50,51]” (p. 9, l. 182). We sincerely hope that this compromise meets your and the APA’s request.

Methods

7. Continuing from my above comment, the description of the IGCS seems again to be limited to only men, but in fact, interactions with other genders within the community would also appear to count toward this scale. Please rephrase to ensure accuracy.

As stated above, the IGCS specifically addresses engagement with the gay community (not the lesbian or any other sexual minority community). This is even more apparent in the German translation of the scale. Possible interactions with other genders are only mentioned in one item (“How often do you attend any gay or lesbian organizational activities, such as meetings, fund-raisers, political activities, etc.?”), presumably as those events are usually not restricted to the gay community but to the LGBTQ+ community as a whole. All other items specifically mention involvement with the gay community. To emphasize the specificity of the scale, we would like to maintain our description.

8. Table 3 still has HOM and HEM as abbreviations.

Thanks for making us aware of that. We changed HOM and HEM to Gay men and Heterosexual men and apologize for the mistake.

Discussion

9. On page 32, lines 656-661, the authors argue from the place that being in a relationship means that gay men are not looking for partners. This is an untenable assumption given that polyamorous (consensual non-monogamous) relationships exist and are considered by participants to be committed. I suggest that the authors rephrase to such that men in committed relationships may be less concerned with attracting new partners.

Thank you for raising this point. We happily included this aspect in the discussion: “Lastly, it was argued that intracommunity pressure to conform to a certain body ideal stems from the wish to attract other members of the community for sexual and social relationships [44]. However, 42% of gay men in our study were in a committed relationship, which was a similar quantity as in heterosexual men. This may have lessened the pressure from the gay community on our gay sample to stay attractive since men in committed relationships may be less concerned with attracting new partners.” (p. 43, l. 830)

10. The phrase “…but the internal consistencies of the translated measures merely differ from those of the originals” is confusing. Maybe rephrase to “…but the internal consistencies of the translated measures are similar to the original validation studies.”

That is indeed a more intelligible phrase, thank you for the suggestion. We were happy to exchange the phrase in our manuscript (“We did not conduct a comprehensive validation process of the translated measures, but the but the internal consistencies of the translated measures are similar to the original validation studies.”, p. 44, l. 853).

Attachment

Submitted filename: Response to Reviewers_PONE-D-21-24159.docx

Decision Letter 2

Masaki Mogi

21 Nov 2022

Body image disturbance and associated eating disorder and body dysmorphic disorder pathology in gay and heterosexual men: A systematic analyses of cognitive, affective, behavioral und perceptual aspects

PONE-D-21-24159R2

Dear Dr. Schmidt,

We’re pleased to inform you that your manuscript has been judged scientifically suitable for publication and will be formally accepted for publication once it meets all outstanding technical requirements.

Within one week, you’ll receive an e-mail detailing the required amendments. When these have been addressed, you’ll receive a formal acceptance letter and your manuscript will be scheduled for publication.

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If your institution or institutions have a press office, please notify them about your upcoming paper to help maximize its impact. If they’ll be preparing press materials, please inform our press team as soon as possible -- no later than 48 hours after receiving the formal acceptance. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information, please contact onepress@plos.org.

Kind regards,

Masaki Mogi

Academic Editor

PLOS ONE

Additional Editor Comments (optional):

Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

1. If the authors have adequately addressed your comments raised in a previous round of review and you feel that this manuscript is now acceptable for publication, you may indicate that here to bypass the “Comments to the Author” section, enter your conflict of interest statement in the “Confidential to Editor” section, and submit your "Accept" recommendation.

Reviewer #3: All comments have been addressed

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2. Is the manuscript technically sound, and do the data support the conclusions?

The manuscript must describe a technically sound piece of scientific research with data that supports the conclusions. Experiments must have been conducted rigorously, with appropriate controls, replication, and sample sizes. The conclusions must be drawn appropriately based on the data presented.

Reviewer #3: Yes

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3. Has the statistical analysis been performed appropriately and rigorously?

Reviewer #3: Yes

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4. Have the authors made all data underlying the findings in their manuscript fully available?

The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception (please refer to the Data Availability Statement in the manuscript PDF file). The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified.

Reviewer #3: Yes

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5. Is the manuscript presented in an intelligible fashion and written in standard English?

PLOS ONE does not copyedit accepted manuscripts, so the language in submitted articles must be clear, correct, and unambiguous. Any typographical or grammatical errors should be corrected at revision, so please note any specific errors here.

Reviewer #3: Yes

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6. Review Comments to the Author

Please use the space provided to explain your answers to the questions above. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. (Please upload your review as an attachment if it exceeds 20,000 characters)

Reviewer #3: (No Response)

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Reviewer #3: No

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Acceptance letter

Masaki Mogi

28 Nov 2022

PONE-D-21-24159R2

Body image disturbance and associated eating disorder and body dysmorphic disorder pathology in gay and heterosexual men: A systematic analyses of cognitive, affective, behavioral und perceptual aspects

Dear Dr. Schmidt:

I'm pleased to inform you that your manuscript has been deemed suitable for publication in PLOS ONE. Congratulations! Your manuscript is now with our production department.

If your institution or institutions have a press office, please let them know about your upcoming paper now to help maximize its impact. If they'll be preparing press materials, please inform our press team within the next 48 hours. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information please contact onepress@plos.org.

If we can help with anything else, please email us at plosone@plos.org.

Thank you for submitting your work to PLOS ONE and supporting open access.

Kind regards,

PLOS ONE Editorial Office Staff

on behalf of

Dr. Masaki Mogi

Academic Editor

PLOS ONE

Associated Data

    This section collects any data citations, data availability statements, or supplementary materials included in this article.

    Supplementary Materials

    Attachment

    Submitted filename: Response to Reviewers_PONE-D-21-24159.docx

    Attachment

    Submitted filename: Response to Reviewers_PONE-D-21-24159.docx

    Data Availability Statement

    The minimal anonymized data set necessary to replicate our study findings can be downloaded from a public repository (Open Science Framework). See: DOI 10.17605/OSF.IO/KFYZ7.


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