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. Author manuscript; available in PMC: 2023 Jan 16.
Published in final edited form as: Psychol Health. 2019 Oct 21;35(7):872–886. doi: 10.1080/08870446.2019.1679372

Change in Weight and Personality in Middle-Aged and Older Adults

Yannick Stephan 1, Angelina R Sutin 2, Antonio Terracciano 2
PMCID: PMC9841264  NIHMSID: NIHMS1863682  PMID: 31631712

Abstract

Objective:

Personality is associated with weight change and the development of obesity across adulthood. The present study examines whether significant weight change, including weight loss and weight gain, is related to personality change in a large longitudinal sample of middle-aged and older adults.

Design:

Participants were adults aged 50 to 92 years (N> 5,000; 59% women, Mean age= 65.51, SD= 8.20) drawn from the Health and Retirement Study (HRS). Personality, demographic, health, and staff assessed weight and height were obtained at baseline and eight years later.

Main Outcome Measures:

Personality traits.

Results:

Both weight loss and weight gain greater than 10% of baseline weight were related to a steeper decline in extraversion, openness and conscientiousness. Weight loss was further associated with the maintenance of neuroticism and to a steeper decline in agreeableness. This overall pattern of personality change was also associated with both unhealthy and healthy weight change. The associations were not moderated by BMI and generally remained significant after accounting for disease burden.

Conclusion:

The present study provides new evidence that both weight loss and weight gain are related to change in personality.

Keywords: Personality, weight, longitudinal, health


Personality traits, as defined by the Five Factor Model (McCrae & John, 1992), are implicated in a range of health-related outcomes across adulthood. In particular, there is robust evidence for the relationship between personality and weight (Jokela et al., 2013; Sutin & Terracciano, 2016a, 2016b; Vainik et al., 2019). Cross-sectional and longitudinal studies found consistently that conscientiousness (the tendency to be organized and self-disciplined) is related to lower adiposity and to lower risk of obesity both concurrently and over time (Chapman, Fiscella, Duberstein, Kawachi, & Coletta, 2009; Jokela et al., 2013; Mõttus, McNeill, Jia, Craig, Starr, & Deary,2013; Sutin, Ferrucci, Zonderman, & Terracciano, 2011; Sutin & Terracciano, 2016a, 2016b; Vainik et al., 2019). Neuroticism (the tendency to experience negative emotions and distress) is associated with higher body mass index (BMI) and higher risk of obesity, but not in all studies (Armon, Melamed, Shirom, Shapira, & Berliner, 2013; Magee & Heaven, 2011; Sutin & Terracciano, 2016a; Vainik et al., 2019). Less consistent evidence exists for the relation between extraversion (the propensity to experience positive emotions and to be sociable), openness (the tendency to be creative and curious) and agreeableness (the tendency to be cooperative and empathetic) and body weight (see Jokela et al., 2013). Most research has focused on personality as a predictor of weight and weight change; comparatively less is known about the extent to which personality change trajectories differ across individuals who do or do not experience substantial weight change over time.

Personality development tends to follow a normative pattern characterized by declines in neuroticism, extraversion, and openness, and increases in conscientiousness and agreeableness during most of adulthood, but not necessarily among older individuals (Lucas & Donnellan, 2011; McCrae et al., 2005; Terracciano, McCrae, & Costa, 2006). Furthermore, there are individual deviations from these trajectories that deserve attention. For example, changes in personality traits such as a steeper decrease in conscientiousness or increase in neuroticism over time may be maladaptive because they are related to higher risk of substance use, lower self-rated health and well-being and higher risk of depression (Choi & Roberts, 2014; Human et al., 2013; Turiano, Whiteman, Hampson, Roberts, & Mroczek, 2012). Therefore, the test of the link between weight change and personality change could contribute to a better understanding of the factors related to maladaptive trait change.

The associations between personality and health are likely to be bidirectional. Indeed, change in health may also be associated with personality change, as in the case of biological dysfunction (Stephan, Sutin, Luchetti, & Terracciano, 2016), onset and development of disease (Jokela, Hakulinen, Singh-Manoux, & Kivimäki, 2014), sensory impairment (e.g., hearing loss) (Stephan, Sutin, Bosselut, & Terracciano, 2017), major depression (Costa, Bagby, Herbst, & McCrae, 2005), or Alzheimer’s disease (Islam et al., 2019). These studies suggest that poor health is related to decreases in emotional stability, extraversion, openness, agreeableness, and conscientiousness (e.g., Jokela et al., 2014; Stephan et al., 2017). This pattern may extend to changes in body weight, and some studies do suggest that weight change is associated with personality. Lathi et al. (2013), for example, found that weight change in childhood and adulthood is associated with personality in late life. Specifically, more weight gain between early adolescence and late adulthood is related to higher extraversion in old age, whereas less weight gain was associated with higher conscientiousness. In addition, less weight gain from early adolescence to adulthood was associated with higher agreeableness in old age. However, this study only focused on weight change and personality in adulthood; it did not address changes in personality across this time. In a pooled analysis of six samples of middle aged and older adults, Jokela et al. (2013) found no overall association between obesity status (e.g. obese vs. not obese) and change in conscientiousness. This study, however, only addressed the relation with change in conscientiousness, not all five traits and not changes in weight. Finally, Sutin et al. (2013) found support for an association between weight change and personality change in two samples. Over a 10-year period, middle aged adults who gained at least 10% in body weight by follow-up were more impulsive (a component of neuroticism) and more deliberative (a component of conscientiousness). At the domain level, weight gain was also associated with small increases in conscientiousness over time, but this association did not replicate across both samples. There was little evidence for an association between weight loss and personality change.

It is likely that weight loss may be associated with changes in personality. Indeed, weight loss is associated with a range of health-related, functional, and cognitive factors that contribute to personality change across adulthood. For example, weight loss is an indicator of frailty (Fried et al., 2001), which has been related to detrimental personality changes, characterized by increased neuroticism and decreased extraversion, openness, agreeableness and conscientiousness over time (Stephan, Sutin, Canada, & Terracciano, 2017). In addition, weight loss may be accompanied by loss of muscle mass and reduced strength which has been found to manifest into higher neuroticism, lower extraversion, agreeableness and conscientiousness (Mueller et al., 2016; Mueller, Wagner, Smith, Voelkle, & Gerstorf 2018). Furthermore, weight loss from midlife to late life is related to cognitive impairment (Alhurani et al., 2016) and is predictive of increased depressive symptoms (Jackson, Steptoe, Beeken, Kivimaki, & Wardle, 2014). In turn, both impaired cognition and depressive symptoms are predictive of an increase in neuroticism, and decrease in extraversion, openness, agreeableness and conscientiousness (Caselli et al., 2018; Donati et al., 2013; Hakulinen et al., 2015).

Based upon a large longitudinal sample of older adults, the present study examined the association between weight change and personality change. In line with Sutin et al. (2013), significant weight loss or gain were defined as a 10% loss or gain from baseline weight. Consistent with existing evidence on the health and cognitive implications of significant weight loss in old age (Alhurani et al., 2016; Fried et al., 2001), it was hypothesized that it would be related to increased neuroticism, and decreased extraversion, openness, agreeableness and conscientiousness. We further tested whether baseline BMI moderated the association between weight change and personality change.

Method

Participants

Participants were drawn from the Health and Retirement Study (HRS), a nationally representative longitudinal study of adults aged 50 years and older conducted by the University of Michigan and funded by the National Institute on Aging (NIAU01AG009740). Starting in 2006, the HRS implemented an enhanced face to face interview including a personality questionnaire and physical measures among a random half of the participants; the other half was assessed in 2008. The two waves were combined as the baseline measure, resulting in a sample of 10,621 participants with complete personality, weight, and demographic data. Follow-up personality and weight data were obtained from the 2014 (for the 2006 sample) and the 2016 (for the 2008 sample) waves. The final sample was composed of 5,053 individuals aged from 50 to 92 years (59% women, Mean age= 65.51, SD= 8.20) who had both personality and staff-assessed weight at baseline and follow-up. Attrition analysis revealed that participants with complete follow-up data were younger (d= .62), more educated (d= .34), more likely to be women and white than those without complete data. In addition, they weighted more (d= .13), and were more extraverted (d= .09), more agreeable (d= .04), more open (d= .16), more conscientious (d= .24), and had lower neuroticism (d= .08).

Measures

Personality.

Personality traits were assessed using the Midlife Development Inventory (MIDI; Zimprich, Allemand, & Lachman, 2012). Participants were asked to indicate how well 26 adjectives assessing neuroticism (4 adjectives, e.g. worrying), extraversion (5 adjectives, e.g. active), openness (7 adjectives, e.g. curious), agreeableness (5 adjectives, e.g. friendly), and conscientiousness (5 adjectives, e.g. hardworking) described themselves on a scale ranging from 1 (not at all) to 4 (a lot). The mean was computed across items for each trait (Cronbach α= .66 to .80).

Weight change.

Respondents were asked to remove their shoes, any bulky clothing and heavy objects from their pockets, and to step on a scale to measure their weight. Weight was recorded to the nearest half pound. Weight loss and weight gain were defined respectively as a 10% decrease and a 10% increase in weight between baseline and follow-up. Relatively stable weight was defined as weight loss and gain lower than 10% between baseline and follow-up.

Covariates.

Demographic covariates were age (in years), sex (coded as 1 for men and 0 for women), education (in years), and race (coded as 1 for white and 0 for other). BMI and disease burden were controlled for in an additional analysis. BMI was computed as kg/m2 from objective measurement of weight and height. Disease burden was the sum of seven diagnosed disease and conditions: high blood pressure, diabetes, cancer, lung disease, heart condition, stroke, and arthritis.

Data analysis

Regression analyses were conducted to test for the association between weight change and personality changes. Two dummy variables were created: the first contrasted weight loss ≥ 10% (coded as 1) to both relatively stable weight (<10% weight loss and < 10% weight gain) and weight gain ≥ 10% (coded as 0), and the second contrasted weight gain ≥ 10% (coded as 1) to relatively stable weight and weight loss ≥ 10% (coded as 0). Each personality trait at follow-up was predicted from the two dummy variables. The covariates age, sex, education, race and baseline personality were all included simultaneously in the analysis with the two dummy variables. BMI and disease burden were further included as additional covariates. Additional analysis tested whether BMI or age moderates the link between weight change and personality change. Both BMI and age were mean-centered before computing the interaction term with the two dummy variables. Supplemental regression analysis also tested whether personality at baseline and personality change were associated with significant weight loss and/or weight gain compared to relatively stable weight over time, controlling for demographic factors.

Additional analysis were conducted using an alternative classification of weight change. Specifically, individuals with follow-up BMI equal or superior to 25, who presented a 10% weight gain, and individuals with BMI lower than 25 who experienced a 10% weight loss were categorized as unhealthy weight change. Individuals with follow-up BMI equal or superior to 25 who experienced a 10% weight loss, and individuals with BMI lower than 25 who experienced a 10% weight gain were categorized as healthy weight change. Two dummy variables were created: unhealthy weight change vs other (stable and healthy weight change) and healthy vs. other (stable and unhealthy). Regression analysis were conducted to test for these associations. Follow-up personality traits were predicted by the two dummy variables, controlling for demographic factors and baseline personality.

Results

Weight loss ≥10% was related to significant changes in neuroticism, extraversion, openness, agreeableness and conscientiousness, controlling for demographic factors (Table 2). Given that all five traits decline over time in the present study, the pattern of relationship observed suggests that weight loss is related to the relative maintenance of neuroticism, and a steeper decline in extraversion, openness, agreeableness and conscientiousness. Figure 1 presents the difference in personality change between individuals with significant weight loss and those with relatively stable weight. The difference in personality change between individuals with at least 10% weight loss and those with relatively stable weight was d= .10 for neuroticism, d= .11 for extraversion, d= .07 for openness, d= .07 for agreeableness and d= .07 for conscientiousness. These associations remained significant when baseline BMI and disease burden were included in the model, except for openness (Table 2). There was no evidence that BMI or age moderated the relation between weight loss and personality change.

Table 2.

Summary of Analysis on the Association between Weight Change and Personality Change

Neuroticism Extraversion Openness Agreeableness Conscientiousness
Model 1 Model 2 a Model 1 Model 2 a Model 1 Model 2 a Model 1 Model 2 a Model 1 Model 2 a

Sex −.01 (−.034;.010) −.01 (−.034;.010) −.04*** (−.060;−.021) −.04*** (−.060;−.021) −.03** (−.052;−.013) −.03** (−.051;−.012) −.09*** (−.112;−.068) −.09*** (−.110;−.066) −.06*** (−.082;−.040) −.06*** (−.082;−.040)
Age .01 (−.008;.038) −.005 (−.029;.019) − .07*** (−.095;−.054) − .07*** (−.089;−.045) − .07*** (−.089;−.049) − .07*** (−.088;−.045) − .06*** (−.077;−.033) − .05*** (−.075;−.029) −.10*** (−.120;−.076) −.09*** (−.111;−.065)
Education −.03* (−.051;−.007) −.03* (−.050;−.005) .04*** (.023; .063) .04*** (.019; .059) .10*** (.077; .118) .09*** (.074; .114) .07*** (.045; .087) .06*** (.043; .086) .10*** (.084;.126) .10*** (.078;.121)
Race .05*** (.030; .074) .05*** (.030; .074) −.00 (−.025; .015) −.00 (−.027; .012) −.01 (−.034; .005) −.02 (−.036; .003) .00 (−.016; .027) .00 (−.018; .024) .01 (−.007; .035) .01 (−.012; .030)
Baseline Personality .61*** (.589;.633) .61*** (.584;.629) .69*** (.671;.711) .69*** (.669;.709) .67*** (.654;.694) .67*** (.655;.695) .62*** (.595;.638) .62*** (.595;.638) .61*** (.590;.632) .61*** (.584;.626)
Weight lossb .05*** (.024;.068) .05*** (.024;.069) −.04*** (−.057;−.016) −.03** (−.051;−.010) −.02* (−.042;−.003) −.02 (−.040;.001) −.03** (−.054;−.011) −.03** (−.052;−.009) −.03** (−.055;−.012) −.03* (−.049;−.005)
Weight Gainc .01 (−.012;.031) .005 (−.017;.027) −.04*** (−.060;−.020) −.04*** (−.058;−.018) −.03** (−.048;−.009) −.03** (−.047;−.008) −.01 (−.030;.013) −.00 (−.027;.016) −.03** (−.051;−.008) −.03* (−.048;−.005)
BMI −.04*** (−.062; −.016) −.00 (−.028; .013) −.00 (−.025;.016) −.00 (−.025;.020) −.02 (−.037;.007)
Disease burden .05*** (.026;.073) −.03** (−.052;−.009) −.01 (−.033;.010) −.01 (−.036;.010) −.05*** (−.070;−.024)
Adjusted R2 .38 .39 .49 .49 .51 .51 .42 .42 .43 .43
F 450.90*** 352.78*** 704.72*** 546.02*** 760.25*** 588.37*** 535.46*** 412.41*** 550.84*** 429.26***

Note: N= 5,053 ; Coefficients are standardized regression coefficients ; 95% confidence intervals are under parentheses.

*

p < .05

**

p < .01

***

p <.001

a

N= 5,024

b

= coded as 1 for weight loss ≥ 10% and 0 for other

c

= coded as 1 for weight gain ≥ 10% and 0 for other

Figure 1.

Figure 1.

Figure 1.

Figure 1.

Changes in Neuroticism (Panel A), Extraversion (Panel B), Openness to Experience (Panel C), Agreeableness (Panel D), and Conscientiousness (Panel E) for Weight Loss and Stable Weight Groups

Note. Means are adjusted for age, sex, education and race.

Weight gain ≥10% was related to a greater decline in extraversion, openness and conscientiousness but was unrelated to change in agreeableness and neuroticism (Table 2). Figure 2 presents personality change among individuals with weight gain and those with relatively stable weight. The difference between personality change of individuals who gained weight and those with stable weight was d= .16 for extraversion, d= .15 for openness, and d= .10 for conscientiousness. These associations remained unchanged when BMI and disease burden were included as additional covariates (see Table 2). BMI and age did not moderate the association between weight gain and personality change.

Figure 2.

Figure 2.

Figure 2.

Changes in Extraversion (Panel A), Openness to Experience (Panel B), and Conscientiousness (Panel C) for Weight Gain and Stable Weight Groups

Note. Means are adjusted for age, sex, education, and race

Supplementary analysis addressed whether personality was related to the likelihood of experiencing significant weight loss and weight gain compared to keeping a relatively stable weight. Baseline higher extraversion and conscientiousness were related to a lower probability of weight loss, whereas higher neuroticism was associated with a higher probability of experiencing both significant weight loss and weight gain (see supplementary material). Personality change was also associated with weight change: An increase in neuroticism over time was related to a higher likelihood of weight loss and an increase in extraversion, openness, agreeableness and conscientiousness was associated with a reduced probability of losing weight over time. An increase in extraversion, openness and conscientiousness were also related to lower risk of weight gain (see supplementary material).

Finally, both unhealthy and healthy weight change were related to increased neuroticism (βunhealthy= .03, p<.01 and βhealthy= .02, p<.05) and to decrease in extraversion (βunhealthy= −.05, p<.001 and βhealthy= −.02, p<.05) and conscientiousness (βunhealthy= −.03, p<.01 and βhealthy= −.03, p<.01). Unhealthy (β= −.03, p<.01), but not healthy (β= −.01, p= .18), weight change was associated with lower openness and healthy (β= −.02, p<.05), but not unhealthy (β= −.02, p=.05), weight change was related to lower agreeableness.

Discussion

The present study examined whether weight change is related to personality change over eight years among middle-aged and older adults. Consistent with the hypothesis, significant weight loss, defined as at least 10% of baseline weight, was related to maintaining neuroticism and to steeper decline for extraversion, openness, agreeableness and conscientiousness. In addition, significant weight gain was associated with decreases in conscientiousness, extraversion, and openness. These associations were independent of individuals’ baseline BMI. Taken as a whole, the present study provides evidence for an association between weight change and personality change across middle and older age.

Individuals who experience significant weight change over time may experience biological, health-related, and cognitive alterations (Alrhumani et al., 2016; Fried et al., 2001; Jackson et al., 2014) that may manifest into lower energy and positive emotions, lower novelty seeking, reduced involvement in social interactions, lower self-discipline and maintained propensity to experience distress (Caselli et al., 2018; Hakulinen et al., 2015; Mueller et al., 2018). In particular, weight loss in old age has a range of health, functional and cognitive implications that may lead to personality change. For example, weight loss is a component of frailty (Fried et al., 2001), which has been related to detrimental personality change (Stephan et al., 2017). In addition, weight loss is associated with functional limitations (Ritchie et al., 2008), depressed mood (Jackson et al., 2014), and cognitive impairment (Alrhumani et al., 2016). In turn, higher limitations in activities of daily living, depressive symptoms, and impaired cognition have been associated with the maintenance of neuroticism and decline in extraversion, openness, agreeableness and conscientiousness over time (Caselli et al., 2018; Donati et al., 2013; Hakulinen et al., 2015; Mueller et al., 2016, 2018). It is also likely that weight loss may reflect disease-related physiological processes that may lead to personality changes. In the same vein, weight gain in adulthood is a risk factor for poor outcomes, including biological dysregulation (Alley et al., 2010), chronic disease (Zheng et al., 2017), and depressive symptoms (Konttinen et al., 2014), resulting in impairment of resources needed to remain enthusiastic and energetic (e.g. extraverted), exploratory and curious (e.g. open to experiences), and self-disciplined and organized (e.g. conscientious) (Hakulinen et al., 2015; Jokela et al., 2014; Stephan et al., 2016). Individuals who gain weight may be more likely to feel stigmatized (Tomiyama et al., 2018) that may reduce social interactions, isolation, and in less novelty seeking behaviors, reflected in lower extraversion and openness. Finally, individuals with significant weight gain or loss may be less likely to be physically active, which is associated with a reduced propensity to experience positive emotions, to be open to new experiences, to be prosocial, and to be self-disciplined (Stephan, Sutin, & Terracciano, 2014).

The present study contributes to existing knowledge in several ways. First, this study adds to knowledge on the factors related to personality change across adulthood. Indeed, a growing body of research has identified a range of behavioral, health-related, cognitive, and physical factors associated with changes in personality traits (Jokela et al., 2014; Stephan, Sutin, Luchetti, Bosselut, & Terracciano, 2018; Stephan et al., 2014; Mueller et al., 2016; 2018; Terracciano, Stephan, Luchetti, Albanese, & Sutin, 2017) and this study is the first to report a significant link with weight loss.

In addition, the present study contributes to knowledge on the implications of weight change in middle and older age by adding personality change to the correlates of weight loss and gain. Of note, weight change was related to personality change independent of the direction of the change, and independent of the extent to which these changes were healthy (i.e., into the range of normal BMI) or unhealthy (i.e., out of the range of normal BMI). Indeed, both loss and gain are both indicators of poor health, with similar deleterious outcomes, that may manifest into similar personality change. Moreover, personality change may explain in part the association between weight change and a range of health and cognitive outcomes. For example, both weight loss and weight gain are predictive of mortality (Park et al., 2018), and higher neuroticism and lower conscientiousness, extraversion, openness, and agreeableness are related to higher mortality risk (Graham et al., 2017). Therefore, it is likely that individuals who experience significant weight changes may be exposed to higher mortality risk in part because they decrease in conscientiousness, extraversion, openness, agreeableness, and emotional stability over time. It is also likely that the association between weight change and mortality risk could be explained by behavioral factors associated with personality traits, such as eating behavior, exercise, and risky behaviors such as smoking or alcohol use. In addition, weight loss is predictive of higher risk of dementia (Singh-Manoux et al., 2018), and higher neuroticism and lower conscientiousness are consistently related to the risk of Alzheimer disease and dementia (Terracciano et al., 2014, 2017). Therefore, weight loss may be related to higher dementia in part through its relationships with the maintenance of neuroticism and decline in conscientiousness. Overall, weight change in older adults has a different pattern of health correlates as compared to younger adults (Murphy et al., 2014; Newman et al., 2001) and such differential patterns may occur for personality traits. As such, weight changes may be associated with different patterns of personality development in younger adulthood. This explanation could account for the difference between our findings and those of Sutin et al. (2013) on the association between weight loss and personality change. The sample of the present study is older (and larger) than the samples in Sutin et al. (2013). Therefore, weight loss may be more salient for personality change in older groups as compared to midlife. Whether such weight and personality change associations are moderated by age should be addressed in future longitudinal studies with a broader age range. The difference in personality measures across the present study and Sutin et al. study may also account for some of the discrepant findings.

The present study has several strengths including the large longitudinal sample of older adults and the use of objective measures of weight. There are also several limitations. The generalizability of the findings is limited by the positive selection of the sample. Specifically, participants in the longitudinal sample had healthier personality profiles and were healthier, younger, and better educated, which could bias the findings and raises the issue of replicability in other samples. The size of the associations, however, may be underestimated by this selection effect, given that individuals who drop out were less healthy and thus may have experienced steeper weight change. In addition, causal relations cannot be determined with an observational design. Although weight change was considered as a predictor of personality change, reciprocal relationships may exist. Indeed, supplementary analysis suggest that personality level and change may predict weight loss or gain over time. More research is needed to further explore these reciprocal relationships. In line with Sutin et al. (2013), future research may use detailed measure of personality to examine whether weight change is related to changes in specific facets. Finally, the present study did not include information about the reasons for weight change, such as whether the weight change was intentional and deliberate or the result of health issues. It is likely that the reasons that underlie weight change may be related to the direction of personality change. Future research should include an assessment of the causes of weight gain or loss to provide a more complete understanding of the associations between weight gain or loss and personality changes.

In sum, the present study provides evidence for an association between weight change and personality change in old age. Both weight loss and weight gain are related to detrimental personality changes. This study thus contributes to a better understanding of factors related to personality change in old age.

Supplementary Material

s

Table 1.

Characteristics of the Sample

Total Sample Weight Lossa Stable Weightb Weight Gainc

Variables M/% SD M/% SD M/% SD M/% SD

Age (Years) at baseline 65.51 8.20 68.71 8.38 65.21 8.01 61.64 7.21
Sex (% women) 59% - 68% - 57% - 66% -
Race (% White) 88% - 88% - 88% - 88% -
Education 13.39 2.67 13.05 2.71 13.46 2.69 13.42 2.41
Body Mass Indexd 29.36 5.58 31.08 6.18 29.09 5.38 28.20 5.33
Disease Burden 1.69 1.20 2.06 1.22 1.61 1.17 1.62 1.21
Baseline Neuroticism 2.01 0.58 2.02 0.59 1.99 0.58 2.14 0.61
Baseline Extraversion 3.23 0.54 3.21 0.55 3.24 0.54 3.21 0.52
Baseline Openness 2.99 0.53 2.97 0.53 2.99 0.54 3.01 0.54
Baseline Agreeableness 3.55 0.46 3.56 0.46 3.55 0.45 3.55 0.46
Baseline Conscientiousness 3.43 0.44 3.38 0.47 3.44 0.43 3.41 0.44
Follow-up Neuroticism 1.92 0.58 1.99 0.60 1.89 0.58 2.00 0.57
Follow-up Extraversion 3.18 0.57 3.11 0.59 3.20 0.56 3.12 0.59
Follow-up Openness 2.90 0.57 2.84 0.55 2.92 0.57 2.89 0.57
Follow-up Agreeableness 3.52 0.49 3.48 0.52 3.52 0.48 3.53 0.48
Follow-up Conscientiousness 3.37 0.48 3.29 0.52 3.39 0.47 3.35 0.48

Note. Total Sample= 5,053

a

Weight loss ≥ 10%, N= 876;

b

Stable weight (< 10% weight loss and < 10% weight gain), N= 3,747

c

Weight gain ≥ 10%, N= 430

d

= Due to missing data, N= 5,024 for the total sample, N= 871 for the weight loss group, N= 3,725 for the stable weight group, and N= 428 for the weight gain group

Acknowledgment:

The present study is based upon the analysis of data collected in the Health and Retirement Study (HRS) is a nationally representative longitudinal study of Americans aged 50 years and older (Grant No. NIA U01AG009740) conducted by the University of Michigan. HRS Data are available at: http://hrsonline.isr.umich.edu/index.php

Funding :

No specific grant from any funding agency, commercial or not-for-profit sectors was received for the present research

Footnotes

Conflicts of Interest: None.

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