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American Journal of Epidemiology logoLink to American Journal of Epidemiology
. 2020 Jun 30;189(10):1033–1036. doi: 10.1093/aje/kwaa108

Epidemiologists Count: The Role of Diversity and Inclusion in the Field of Epidemiology

Lan N Ðoàn , Adrian M Bacong, Kris Pui Kwan Ma, Brittany N Morey
PMCID: PMC7666407  PMID: 32602522

Abstract

We present interpretations of the idea that “epidemiologists count” in response to the current status of membership and diversity and inclusion efforts within the Society for Epidemiological Research (SER). We review whom epidemiologists count to describe the (mis)representation of SER membership and how categorizations of people reflect social constructions of identity and biases that exist in broader society. We argue that what epidemiologists counthow diversity and inclusion are operationalized—has real-world implications on institutional norms and how inclusive/non-inclusive environments are. Finally, we examine which epidemiologists count within the field and argue that inclusion can only be achieved when we address how resources and opportunities are distributed among epidemiologists. To improve diversity and inclusion within SER and beyond, we recommend that SER strengthen its commitment to diversity, inclusion, and equity by: 1) integrating this priority on all agendas; 2) enhancing efforts to improve self-awareness among members and accountability within the organization; 3) supporting the growth of a diversifying workforce in epidemiology; and 4) increasing the visibility of health disparities research and researchers in epidemiology.

Keywords: diversity, inclusion, health equity, social epidemiology

Abbreviations

SER

Society for Epidemiological Research

Editor’s note: The opinions expressed in this article are those of the authors and do not necessarily reflect the views of the American Journal of Epidemiology.

If you peruse the Society of Epidemiologic Research (SER) website, you will find the Epidemiology Counts podcast. Upon your first read, the title seems “punny” because epidemiologists count the distribution of disease. However, a deeper interpretation is that epidemiologists count as individuals and determine who and what counts. For diversity and inclusion initiatives to succeed, we need to critically reflect on how diversity and inclusion has translated into whom, what, and which epidemiologists count. Unsurprisingly, the discussion on diversity and inclusion in epidemiology is not new. The Journal has published articles that have flirted with these topics, albeit implicitly. These articles emphasized the need to improve epidemiology training (1) and engagement with community members and multidisciplinary teams (2, 3), concluding with recommendations for diversity and inclusion in epidemiology. We frame this interpretation of “epidemiologists count” to discuss the recent paper on SER membership (4) and its respective implications for diversity and inclusion in epidemiology.

KEY POINT 1: WHOM EPIDEMIOLOGISTS COUNT

One of the goals of epidemiology is to make population-level estimates, but how do epidemiologists “specify” populations, and how does this reflect assumptions about diversity and inclusion? These specifications reflect the underlying social constructions of identity, including conscious and subconscious biases that exist in broader society (5, 6). Predetermined social categories (e.g., race/ethnicity or gender binary) reflect who is considered important by epidemiologists. These categories often fail to capture individuals’ truly lived experiences, forcing respondents to check a box that is oversimplified and overly restrictive. The inadequacy is reflected in greater nonresponse and tendency toward the “other” category. Therefore, the very nature of specifying populations by restricting responses to stringently held norms of social categorization in the SER survey could ultimately lead to perceptions of noninclusivity among respondents.

A thorough discussion of diversity cannot be held without recognizing the role of “-isms” in society, including racism, classism, and sexism. These -isms reflect the historical ways in which certain groups have been privileged and prioritized over others, which inevitably affects how we categorize people today for the sake of data analysis. Increasingly, as our society becomes more diverse, and survey responses become more difficult to obtain, it will be important to consider how to capture peoples’ intersectional identities. Crenshaw states that “the intersectional experience is greater than the sum of racism and sexism” (7, p. 140) and “focus on the intersections of race and gender only highlights the need to account for multiple grounds of identity when considering how the social world is constructed” (8, p. 1245). When applied to epidemiology, capturing intersectionality means moving beyond the predetermined categories to determine how people view themselves in relation to broader society (9, 10).

It might be difficult to understand how epidemiologists should measure intersectionality. The typical but theoretically vague approach is to operationalize intersectionality by examining the joint of effects of each social category on an outcome (i.e., interaction term). This approach reaches at intersecting identities but improperly distills identities as additive. The ideal approach is to allow the lived experiences of individuals who lie at intersecting and marginalized identities to be part of the research process. Take for example a study examining barriers to condom use among men who have sex with men (11). Researchers could analyze the data by individual social categories and combinations of them (e.g., Latinx men, Black men, gay men, gay Latinx men, gay Afro-Latinx men). However, while this approach might identify disparities by combinations of race/ethnicity and sexual orientation, it might not identify the advantages and disadvantages individuals experience because of these ascribed identities. An approach that properly involves men who have these social identities in the research development process would allow researchers to create questions specifically tailored to the men’s respective communities. Involving community members aids with interpreting these categories appropriately, guiding researchers to focus on communities experiencing the greatest social disadvantage.

Incorporating an intersectionality framework into epidemiology provides new opportunities and challenges for population research (12, 13). Qualitative data and open-ended questions can illuminate diverse identities that are hidden when forced into limited categorical responses. SER members could be asked to share their experiences with the -isms within SER or to rank their perceived social standing within the organization. We recognize that examining dimensions of intersectionality and the -isms will force many in epidemiology to ask difficult questions of ourselves and others, pushing us out of our comfort zones. Genuine efforts to address issues of diversity and inclusion might go against the very nature of epidemiologic analyses, which tend to overgeneralize toward the average. When examining issues of diversity, it is not the majority or the average we are most concerned with. Often, it is the outlier, the minority, and the missing that we are most interested in. Instead of aggregating toward the majority, we should recognize and affirm the marginalized experiences.

Finally, we should question the assumptions and use of methods such as imputation and weighting. Imputation seeks to account for missing data, but studies have shown that imputation might reflect inaccurate underlying assumptions and bias results (14). More importantly, imputation does not answer the larger question of why people are missing in the SER survey. Furthermore, weighting of data by factors such as race/ethnicity places the burden of representativeness on a few. For example, if there are fewer Asian respondents than are in the SER member database, and their responses are given greater weights, this might cause overgeneralizations to be made based on the responses of a few. It is, in essence, similar to asking a few members of a racial group to explain the experiences of their entire race, when this assumption is neither fair nor accurate.

KEY POINT 2: WHAT EPIDEMIOLOGISTS COUNT

What epidemiologists choose to measure and how these data are presented have real-world implications for evidence-based policies and interventions. This section considers the operationalization of diversity and inclusion and argues that current measures might actually impede the progress of diversity and inclusion in epidemiology.

There are top-down (i.e., institutional-level) and bottom-up (i.e., individual-level) factors that influence and perpetuate noninclusive environments. Counting only individual-level dimensions of inclusivity can have serious implications for future diversity and inclusion initiatives because it does not address the broader system of power and privilege that SER members are embedded within. Epidemiologists should adopt a multilevel (i.e., individual, interpersonal, and institutional) approach to better understand and advance institutional diversity and inclusion.

DeVilbiss et al. (4) characterized individual-level dimensions of social identity to understand perceptions of inclusion and participation. However, operationalizing diversity at the individual level means the onus of change falls upon SER members and ignores the interpersonal- and institutional-level factors that influence SER inclusion. For example, the authors measured participation in society-initiated activities but failed to consider the barriers to individual participation. Thus, a more comprehensive assessment of inclusion could involve “organizational strategies and practices that promote meaningful social and academic interactions among persons and groups who differ in their experiences, their views, and their traits” (15, p. 1). For instance, diversity at the institutional level could be measured by the makeup of SER leadership or journal editorial boards. Leadership positions are an indication of inclusion at the highest levels of epidemiologic excellence (16) and represent who holds the power to make decisions on organizational priorities. Assessing these interpersonal interactions (e.g., collaborations and collegial networks) among SER members could help us identify patterns of segregation and inclusion within the organization. Ultimately, SER should build a diverse and inclusive society, rather than a diverse but segregated society.

An ideal approach would embed diversity and inclusion into all of the organization’s activities. The complete work of improving diversity and inclusion cannot be assigned to a committee or minoritized individuals (17). Allocating initiatives to a committee often means that few individuals beyond committee members are intentionally thinking about diversity and inclusion. Furthermore, minoritized individuals are often expected to represent the perspective of all minoritized groups (18). The greatest improvements in health behavior interventions often occur with multilevel approaches, when individual actions are enabled by environmental and institutional change (19, 20). Similarly, the responsibility to improve diversity and inclusion should be assigned to the SER organization, which would ultimately move the needle to promote diversity and inclusion.

The SER code of conduct states “all participants in SER activities will enjoy a welcoming environment free from discrimination, harassment and retaliation” (21). However, it will take more than individual-level reporting of policy violations to ensure the “free expression and exchange of ideas” that this code encourages (21). It will require bottom-up approaches from individuals and top-down approaches from SER leadership.

KEY POINT 3: WHICH EPIDEMIOLOGISTS COUNT

Understanding whom and what epidemiologists count leads us to the last point: which epidemiologists count. Here, we can change the SER institutional norms to critically consider intersectionality in epidemiologic studies. We argue that we can attain “inclusion of diverse individuals” only when we achieve equity in the field of epidemiology.

What are the facilitators or barriers that advantage some and not others in the field of epidemiology? The biases that exist in the social constructions of identity are also present in determining who has the power, to whom opportunities are provided, and how resources are distributed within epidemiology. The majority of SER members identified as White and female (4). Why does SER membership look this way? Who holds the leadership positions and power to make decisions on conference and journal publication acceptance? If we understand who conducts research, we can also understand whom research is conducted for, who is benefitting from the research, and the biases that exist toward who researchers are and which epidemiologic research is deemed important.

SER is a professional society where research presence and participation are often required for promotion and tenure. Therefore, individuals would participate in SER activities regardless of feeling included or welcome. Barriers prior to SER membership include unequal access to opportunities because of unconscious or conscious biases. Barriers to success in epidemiologic research include gender disparities in authorship, who is cited in high-impact journals, and lack of diverse representation on editorial boards (16, 22). It is incorrect to assume diversity within epidemiology exists in a vacuum; we should challenge structures of power and privilege within the field.

FUTURE RECOMMENDATIONS

We offer the following recommendations to improve diversity and inclusion within SER and beyond. First, strengthen SER’s commitment to diversity, inclusion, and equity by integrating this priority on all agendas. Having this commitment embedded into the SER framework and programming ensures that everyone will engage in conversations on issues of diversity and inclusion.

Second, SER should enhance efforts to improve self-awareness and hold the organization accountable for achieving diversity and inclusion. The society should regularly evaluate the progress of diversity and inclusion efforts in all activities and programming, and at multiple levels of SER, to examine whether these initiatives are truly centered around diversity and inclusion and provide equitable access to opportunities. SER should provide training on diversity and inclusion topics and allyship (i.e., using power and privilege to create inclusive environments) to improve engagement within the organization. Individual members should also acknowledge their own biases, recognizing where they are situated in the hierarchy of power (e.g., power dynamics), on whom their biases have negative or positive impact, and how these biases influence their work (23).

Third, SER should, at all access points into epidemiology, support the growth of the diversifying workforce and be intentional about who receives training opportunities. The SER leadership team and Journal editorial board should strive to represent multiple dimensions of diversity, because the society cannot truly achieve equity until minoritized individuals are able to lead in meaningful ways (i.e., ability to promote change and not be the token minoritized person whose voice is not heard).

Finally, SER should advance scientific knowledge and innovation by increasing the visibility of health disparities research and diverse researchers. For example, SER-highlighted sessions or Journal special issues could center around the work of and about minoritized individuals, to affirm that these individuals and research topics are important. Improving diversity and inclusion in SER will advance equity in research and practice, and ultimately improve discovery within epidemiology and public health.

Acknowledgments

Author affiliations: School of Social and Behavioral Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, Oregon (Lan N. Đoàn); Department of Community Health Sciences, Fielding School of Public Health, University of California Los Angeles, Los Angeles, California (Adrian M. Bacong); Department of Psychology, DePaul University, Chicago, Illinois (Kris Pui Kwan Ma); and Department of Health, Society, & Behavior, Program in Public Health, University of California Irvine, Irvine, California (Brittany N. Morey). L.N.Đ. is currently at the Department of Population Health’s Section for Health Equity, New York University Grossman School of Medicine, New York City, New York.

L.N.Ð. was supported by the National Institute on Aging of the National Institutes of Health (grant R36 AG060132). A.M.B. was supported by the UCLA Graduate Research Mentorship Fellowship.

The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.

We thank Dr. Onyebuchi A. Arah for his support during the initial development of this commentary.

Conflict of interest: none declared.

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