Exploring the intersection of multiple social determinants of health and disordered eating behaviors in a population-based sample in the United States

A mixed-methods longitudinal examination of weight-related self-monitoring and disordered eating among a population-based sample of emerging adults

BACKGROUND

Weight-related self-monitoring (WRSM) apps are used by millions, but the effects of their use remain unclear. This study examined longitudinal relationships between WRSM and disordered eating among a population-based sample of emerging adults.

METHODS

Participants (n = 138) were recruited from EAT 2010-2018 (Eating and Activity over Time study) to participate in a mixed-methods (quantitative and qualitative) longitudinal study to understand the impacts of WRSM. In 2018, participants (Mage=21.7 ± 1.9 years) reported motivations for use and types of WRSM apps used. Dependent variables collected in 2022 (Mage=25.7 ± 1.9 years) included past year total number of disordered weight control behaviors, disordered muscle building behaviors, compulsive exercise, and binge eating. Linear and logistic regressions were used adjusting for sociodemographics, body mass index, and baseline disordered eating. Semi-structured interviews (n = 25) were analyzed using inductive thematic analysis.

RESULTS

Participants using WRSM apps for weight management demonstrated an increase in disordered weight control behaviors over time (β = 0.894, p = .012). Using WRSM apps for "healthy" eating was marginally associated with an increase in disordered weight control behaviors. (β = 0.673, p = .052). Qualitatively, participants reported varied temporality between WRSM and disordered eating, but believed that app use encouraged restriction/binge cycles and normalized disordered eating.

CONCLUSIONS

Findings suggest there may be individual variation in the relationships between WRSM and disordered eating, but that using WRSM apps with the motivation of managing eating or weight may increase disordered eating in some. Additionally, WRSM apps may normalize or encourage disordered eating. Therefore, safeguards, including screening and monitoring, are needed to ensure WRSM does not cause or escalate harm among WRSM users.

A systematic review of weight stigma and disordered eating cognitions and behaviors

Weight stigma is persistent across contexts and is associated with disordered eating cognitions and behaviors. This systematic review aimed to examine the existing literature that has explored the relationship between weight stigma and disordered eating cognitions and behaviors. We specifically examined three dimensions of weight stigma - experienced, anticipated, and internalized - and adopted an inclusive conceptualization of outcomes related to disordered eating (including constructs such as binge eating, body dissatisfaction, and other cognitions and behaviors such as dietary restraint, unhealthy weight control behaviors, and drive for thinness). We searched PubMed, Embase, CINAHL, Web of Science, Sociological Abstracts, and PsycINFO for English-language, peer-reviewed articles and dissertations with quantitative methodology published through October 2023. The search resulted in 242 articles meeting inclusion criteria. A narrative review found a consistent relationship between greater weight stigma and more disordered eating cognitions and behaviors. Methodological and theoretical limitations are discussed, as are critical avenues for future research and potential clinical implications stemming from this body of research. Given the widespread nature and impact of weight stigma on disordered eating, it is imperative that we intervene to address weight stigma at all levels, from the structural to the intrapersonal.

Pediatric healthcare professionals' attitudes and beliefs about weight stigma: A descriptive study

PURPOSE

Children face weight-based stigma from their healthcare providers at a disconcerting rate, and efforts to mitigate this have been scant. This study aimed to quantify pediatric healthcare professionals' attitudes and beliefs about weight stigma and to determine stigma reduction interventions that are most supported by pediatric healthcare providers.

DESIGN AND METHODS

Participants completed two validated instruments which measured implicit and explicit weight bias, respectively. They then completed a researcher-designed questionnaire to assess their attitudes and beliefs about weight stigma, and demographic questions. ANOVA models were used to examine associations between bias measures and participant characteristics, chi-square analyses were used to examine associations between questionnaire responses and participant characteristics, and Spearman's rank was used to determine correlations between weight bias and questionnaire responses.

RESULTS

Participants exhibited moderate-to-high levels of implicit and explicit weight bias (mean Implicit Association Test score = 0.59, mean Crandall Anti-Fat Attitudes Score = 38.95). Associations were noted between implicit bias and years in practice (p < 0.05), and implicit bias and occupation (p < 0.05). There was a significant correlation between explicit bias and multiple questionnaire items, suggesting that healthcare providers with greater weight bias are aware of those biases and are ready to take action to address them.

CONCLUSION

Though pediatric healthcare exhibit weight-based biases, they are invested in taking steps to mitigate these biases and their impact on patients.

PRACTICE IMPLICATIONS

The results of this study can inform the design of future interventions that aim to reduce healthcare-based weight bias, thus improving the quality of pediatric healthcare.

More Than Identity: An Intersectional Approach to Understanding Mental-Emotional Well-Being of Emerging Adults by Centering Lived Experiences of Marginalization

Understanding social determinants that shape pertinent developmental shifts during emerging adulthood (i.e., ages 18-25 years) and their associations with psychological health requires a nuanced approach. In our exploratory study, we investigated how multiple social identities and lived experiences generated by systems of marginalization and power (e.g., racism, classism, sexism) intersect in connection to the mental-emotional well-being of emerging adults (EAs). Eating and Activity Over Time (EAT, 2010-2018) data were collected from 1,568 EAs (mean age = 22.2 (standard deviation, 2.0) years) recruited initially in 2010 from Minneapolis/St. Paul schools. Conditional inference tree analyses were employed to treat "social location" and systems of marginalization and power as interdependent social factors influencing EAs' mental-emotional well-being outcomes: depressive symptoms, stress, self-esteem, and self-compassion. Conditional inference tree analyses identified EAs' subgroups with differing mean levels of mental-emotional well-being outcomes, distinguished primarily by marginalized social experiences (e.g., discrimination, financial difficulties) rather than social identities themselves. The relative positioning of EAs' experiences of social marginalization (e.g., discrimination) to their social identities (e.g., race/ethnicity) suggests that the social experiences generated by systems of privilege and oppression (e.g., racism) are more adjacent social determinants of mental-emotional well-being than the social identities used in public health research to proxy the oppressive systems that give them social meaning.

Disordered eating during pregnancy among individuals participating in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC)

BACKGROUND

Food insecurity is associated with adverse psychosocial and health consequences in pregnancy. In non-pregnant populations, evidence suggests that food insecurity is linked to eating pathology, independent of depression or anxiety. Food assistance programs intended to reduce food insecurity, such as the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC), may unintentionally contribute to eating pathology through a "feast-or-famine" cycle (i.e., cyclical periods of food deprivation and food access over the benefit month). Thus, the present study examined associations between WIC participation and disordered eating in pregnancy, covarying for depressive symptoms.

METHODS

The present study is a secondary analysis of the Pittsburgh Girls Study (PGS), a 21-year prospective longitudinal study that over-sampled households in low resourced neighborhoods. The present analysis included a subset of pregnant PGS participants (N = 210; 13-25 years of age) who reported on WIC participation, and disordered eating and depressive symptoms on validated measures.

RESULTS

Negative binomial regression models covarying for participant's age at conception and gestational age at assessment found that WIC participation was associated with higher scores on overall eating pathology as well as dieting and oral control subscales, but not bulimic or food preoccupation subscales, or a binge-eating item. Patterns of findings did not change when depressive symptom severity was included in models.

DISCUSSION

WIC participation was associated with eating pathology during pregnancy. Future research should clarify directional relationships among food insecurity, food assistance, and eating behavior in pregnancy to promote health equity.