Intersecting gender identity and racial/ethnic inequities in eating disorder risk factors, symptoms, and diagnosis among U.S. college students: An intersectional multilevel analysis of individual heterogeneity and discriminatory accuracy.

INTRODUCTION: There are documented inequities in eating disorders (EDs) by gender and race/ethnicity, yet, little is known about population-level prevalence of ED risk factors, symptoms, and diagnosis at the intersection of diverse gender and racial/ethnic identities. METHODS: Data from the Healthy Minds Study 2015-2019 (N = 251,310 U.S. university students) were used in a multilevel analysis of individual heterogeneity and discriminatory accuracy (MAIHDA). Participants were nested in 35 intersectional strata given by all combinations of 5 gender and 7 racial/ethnic categories. Multilevel logistic models with participants at level 1 and intersectional strata at level 2 were used to estimate stratum-specific predicted prevalence estimates for self-reported thin-ideal internalization, ED symptoms, and ED diagnosis. The variance partition coefficient (VPC) was calculated to quantify the contextual effect of the strata. RESULTS: There was considerable heterogeneity in the predicted prevalence of our ED outcomes across the strata (e.g., .3%-18.3% for ED diagnoses). There were large disparities in all three outcomes, with transgender participants of color having a higher predicted prevalence than expected based on the additive effects of gender and race/ethnicity. Moderation by race/ethnicity was also apparent, such that racial/ethnic disparities were wider within the cisgender groups relative to the transgender groups. VPCs indicated that ~10% of the total variance in ED outcomes was due to intersectionality between gender and race/ethnicity, over and above variance due to individual-level differences. CONCLUSION: Findings suggest that gender and racial/ethnic disparities in EDs are interrelated, underscoring the need to develop preventive interventions centering health equity. PUBLIC SIGNIFICANCE: Despite evidence that sexism, racism, and cissexism (i.e., anti-transgender prejudice) can impact EDs risk, little research examines the social patterning of EDs at the intersection of diverse gender and racial/ethnic identities. Using data from a sample of 250,000 U.S. university students, this study found that gender and racial/ethnic disparities in eating disorder risk are interrelated, highlighting the need to develop health equity centered preventive interventions.

Evaluating whether a peer-led dissonance-based eating disorder prevention program prevents onset of each eating disorder type.

BACKGROUND: This study tested whether the dissonance-based Body Project eating disorder prevention program reduced onset of subthreshold/threshold anorexia nervosa (AN), bulimia nervosa (BN), binge eating disorder (BED), and purging disorder (PD) over long-term follow-up. METHODS: Data were combined from three prevention trials that targeted young women at high-risk for eating disorders (N = 1092; M age = 19.3). Participants were randomized to Body Project groups led by peer educators or expressive writing/educational controls and completed masked diagnostic interviews over 2- to 4-year follow-ups. Logistic regressions tested whether onset of each eating disorder over follow-up differed between Body Project and control participants. RESULTS: Peer-led Body Project groups produced a 46% reduction in onset of subthreshold/threshold BN and a 62% reduction in onset of PD relative to controls over follow-up. Rates of onset of subthreshold/threshold AN and BED did not significantly differ between peer-led Body Project participants and control participants. CONCLUSIONS: Results support the dissemination of the peer-led Body Project for reducing future onset of BN and PD. This study and recent research suggest that thin-ideal internalization, the risk factor for eating disorders targeted in the Body Project, may be more relevant for predicting onset of BN and PD compared to AN and BED. Findings support the development of a version of the Body Project aimed to reduce risk factors that have predicted future onset of all four types of eating disorders (e.g. overvaluation of weight/shape, fear of weight gain), which may more effectively prevent all eating disorder types.

Examining relationships among thin-ideal internalization, eating pathology, and motivational reactions to high- and low-calorie food.

Motivational responses to food stimuli are relevant for eating disorders (EDs). Research examining reactions to food in EDs has been mixed, with some studies reporting enhanced appetitive responses, and others observing defensive responses, to food. Thin-ideal internalization, a socio-cognitive factor implicated in EDs, may relate to these mixed findings, as individuals with eating pathology may experience food as a threat to internalized ideals of thinness, despite its inherently appetitive qualities. In the present study, physiological reflexes measuring defensive (startle blink reflex) and appetitive (postauricular reflex) responding as well as self-report ratings were recorded while 88 women with and without eating pathology viewed images of high- and low-calorie food. Greater global eating pathology, but not thin-ideal internalization, was associated with negative self-report valence ratings and lower craving ratings of high-calorie food. In contrast, greater thin-ideal internalization and eating pathology both related to more positive self-report valence ratings of low-calorie food, with thin-ideal internalization accounting for some of the shared variance between low-calorie food ratings and eating pathology. Overall, thin-ideal internalization may represent a higher-order factor that may contribute to the relationship between conscious reactions to food and disordered eating.

Towards a sociocultural model of weight stigma.

PURPOSE: Weight stigma is pervasive and is associated with numerous physical and psychological health consequences, including decreased body satisfaction. Understanding of contributing factors to weight stigma remains limited, although researchers have consistently documented the connection between weight controllability beliefs and weight stigma. Sociocultural factors, including thin-ideal internalization and related social-cognitive correlates, are in the nascent stages of exploration to further our understanding of weight stigma. METHODS: In this study, we tested an emerging sociocultural model of weight stigma, examining the influence of thin-ideal internalization and appearance-related comparisons on weight stigma, statistically controlling for weight controllability beliefs and accounting for thin-ideal environmental influences. Participants were 137 MTurk workers living in the United States. RESULTS: We found that increased thin-ideal information was associated with thin-ideal internalization, which in turn was related to both upward and downward appearance-related comparison tendencies. These comparisons were then significantly related to weight stigma, controlling for weight controllability beliefs. There were significant indirect effects of both upward and downward appearance-related comparison tendencies on the relation between thin-ideal internalization and weight stigma. CONCLUSION: These results extend limited prior research examining the association between the thin-ideal and appearance-related comparisons with weight stigma, and contribute to a more nuanced understanding of this complex phenomenon. LEVEL OF EVIDENCE: Level V, cross-sectional study.

Social appearance anxiety moderates the relationship between thin-ideal internalization and eating disorder symptoms cross-sectionally and prospectively in adolescent girls.

PURPOSE: The sociocultural theory of eating disorders (EDs) posits that thin-ideal internalization may interact with social risk factors to influence ED development. Social appearance anxiety (SAA) is a potential social risk factor for EDs that may influence the relationship between thin-ideal internalization and EDs. METHODS: The current study (N = 525 adolescent females) examined whether SAA moderated the relationship between thin-ideal internalization and ED symptoms cross-sectionally and prospectively across one month. RESULTS: The interaction between thin-ideal internalization and SAA on ED symptoms was significant in both models, such that when SAA was higher, there was a significantly stronger relationship between thin-ideal internalization and ED symptoms. We also found that SAA uniquely, prospectively predicted ED symptoms. CONCLUSION: These results suggest that adolescents with high SAA and high thin-ideal internalization are more likely to exhibit higher ED symptoms. SAA both prospectively predicts ED symptoms and may amplify the relationship between thin-ideal internalization and EDs. This research highlights SAA as a social risk factor for ED development in adolescents. Interventions focused on SAA may optimize ED prevention in this population. LEVEL OF EVIDENCE: Level IV, evidence obtained from multiple time series with or without the intervention.

Perceptions of male partner pressure to be thin and pornography use: Associations with eating disorder symptomatology in a community sample of adult women.

OBJECTIVE: Partner-specific factors have been neglected in eating disorder (ED) research. The present study examined two partner-specific variables that were hypothesized to be linked to women's ED symptoms: perceived male partner thinness-related pressures and pornography use. METHOD: Community women (N = 409) in relationships with men completed online anonymous measures of ED symptomatology, perceptions of male partner thinness-related pressure and pornography use, and thin-ideal internalization. RESULTS: Partner thinness-related pressure was related to higher ED symptomatology, adjusting for age and thinness-related pressures from media, friends, and family. Current and previous partner pornography use were related to higher ED symptomatology, adjusting for age and women's reports of being bothered by this use. Partner thinness-related pressure and previous partner pornography use were associated with ED symptomatology both directly and through thin-ideal internalization, whereas current partner pornography use was directly associated with ED symptomatology. DISCUSSION: Perceptions of male partner thinness-related pressure and pornography use constitute unique factors associated with women's ED symptomatology that may operate indirectly by positioning women to endorse thinness as a personal standard and directly (e.g., by trying to accommodate their partner's appearance preferences). This study's findings provide initial support for pursuing subsequent investigations to test these partner variables as ED risk factors.

Thin-ideal internalization: How much is too much?

Internalization of the thin-ideal is a risk factor for eating disorders that frequently persists into recovery and increases patient risk for relapse. Addressing thin-ideal internalization as a core element of eating disorder prevention and treatment produces significant reductions in eating pathology. However, research has not yet quantified levels of thin-ideal internalization that may signal increased versus decreased risk for disordered eating. To address this gap in the literature, receiver operating characteristic (ROC) curve analysis was used to identify a thin-ideal internalization cutoff score that signified clinically-meaningful eating disorder pathology. 787 college women (age M = 20.17, SD = 2.41; BMI M = 23.58, SD = 5.29) were classified as "healthy" (N = 717) or those with significant disordered eating (N = 70) using established clinical cutoffs for the Eating Disorder Examination-Questionnaire. ROC curve analysis was used to test the performance of the Sociocultural Attitudes Towards Appearance Questionnaire-4 (SATAQ-4) Internalization: Thin/Low Body Fat subscale in predicting disordered eating status, and to identify a cutoff score that maximized sensitivity and specificity to discriminate between healthy and disordered eating samples. Mean SATAQ-4 internalization scores were 3.29 (SD = 0.92) and 4.27 (SD = 0.62) for healthy and disordered eating participants, respectively. The SATAQ-4 internalization scores were good predictors of disordered eating status (area under the curve = 0.81, 95% CI: 0.76-0.86). The optimal cutoff of 3.78 (measured on a 1-5 Likert scale) yielded a sensitivity of 0.81 and specificity of 0.64. Overall, results provide preliminary support for the discriminant validity of SATAQ-4 thin internalization scores and suggest that even moderate levels of thin-ideal internalization may be predictive of clinically-significant eating pathology. It may be important for prevention and intervention work to actively seek to reduce internalization levels below this clinical cutoff, though future work is needed to bear this out.

On the measurement of thin-ideal internalization: Implications for interpretation of risk factors and treatment outcome in eating disorders research.

OBJECTIVE: Although the Sociocultural Attitudes Towards Appearance Questionnaire (SATAQ) and Ideal Body Stereotype Scale (IBSS) are used interchangeably to assess thin ideal internalization, limited work has examined the assumption that the two measures index the same construct. METHOD: The current study utilized confirmatory factor analysis to examine whether these measures capture a single construct (one-factor), two constructs (two-factor), or both shared and unique constructs (bifactor). The SATAQ-4R-Internalization: Thin/Low Body Fat subscale and IBSS-Revised were administered to 1,114 college females. RESULTS: A bifactor model provided the best fit to the data. Further, the SATAQ-4R was more strongly related to disordered eating and body satisfaction than the IBSS-R. DISCUSSION: Results indicate that the two most commonly used measures of internalization capture both shared and unique constructs. While both measures appear to contribute to the assessment of a global internalization factor, the SATAQ-4R may be better suited to assess personal acceptance of and desire to achieve a thin body, while the IBSS-R may be better suited to assess an awareness or acknowledgement of broader sociocultural ideals (e.g., toned, shapely bodies). Continued psychometric investigation of the scales is recommended in order to ensure targeted assessment of the intended constructs.

Do universal media literacy programs have an effect on weight and shape concern by influencing media internalization?

The current study examined whether media internalization, found to mediate the relationship between selected prevention programs and outcomes, mediated the impact of two universal prevention programs that targeted risk factors for eating disorders and obesity, namely weight concern, and shape concern. Students randomized to a media literacy (Media Smart) program (N = 269, 65% females, mean age 12.97 years) and a healthy lifestyle (Life Smart) program (N = 347, 69% females, mean age 13.07 years) were included in the analyses. There were four waves of data (baseline, end of intervention, 6- and 12-month follow-up). Latent growth curve modeling was used to explore whether group assignment influenced levels of media internalization, and whether that in turn influenced change over time of our two outcome variables. Being randomly allocated to Media Smart as opposed to Life Smart resulted in less growth of both outcome variables through the influence on decreasing levels of media internalization. Findings provided support for the suggestion that media literacy programs exert an impact on outcomes related to eating disorder risk through changes to media internalization. Future research should examine whether these mechanisms of change differ between girls and boys.

An experimental investigation of the consequences and social functions of fat talk in friendship groups.

OBJECTIVE: Fat talk is a form of self-degrading, thin-ideal endorsing communication that occurs within female friendship groups. Previous studies have suggested negative associations with wellbeing, but have been predominantly correlational and based on self-report. This study aimed to assess the causal relationship between fat talk and the correlates of disordered eating (thin-ideal internalization, body dissatisfaction, negative affect, and dieting intentions) by experimentally manipulating fat talk in existing friendship groups and measuring naturalistic expression of fat talk and its effects. METHODS: Participants were 85 women aged 17-25 who completed the experiment in friendship pairs. They were randomly assigned to a condition in which their friend expressed fat talk, positive body talk, or neutral talk. RESULTS: This study found evidence of a causal link between listening to friends fat talk and increased correlates of disordered eating. The negative effects of listening to fat talk were fully mediated by fat talk expression. This study also revealed a social function of fat talk, whereby participants rated their friends more positively when they were perceived to behave consistently with group norms, either pro- or anti-fat talk. Positive body talk showed none of the negative effects of fat talk, and was considered socially acceptable regardless of existing friendship group norms. DISCUSSION: These findings indicate that fat talk is a mechanism through which the thin ideal is transmitted between individuals. Interventions at the level of the friendship group to challenge norms and communication styles may break the link between societal risk factors and individual risk of eating disorders.

Does Media Literacy Mitigate Risk for Reduced Body Satisfaction Following Exposure to Thin-Ideal Media?

Exposure to thin-ideal media can contribute to increased body dissatisfaction in adolescent girls. Understanding the factors that may prevent or exacerbate the negative effects of media exposure on body dissatisfaction is important to facilitate prevention of these problems. This study evaluated the effects of exposure to thin-ideal media images on body image in three instructional set experimental conditions: appearance comparison, peer norms, and control. An important aim was to examine baseline levels of media literacy as a protective factor and trait thin-ideal internalization and trait upward appearance comparison as risk factors. Early adolescent girls (N = 246) completed baseline measures and 1 week later viewed thin-ideal media images, before and after which they rated their state body satisfaction. Participants in the appearance comparison instruction but not peer norms instruction condition had significantly reduced body satisfaction. Media literacy, particularly high levels of critical thinking, mitigated the negative effects of trait thin-ideal internalization and trait upward appearance comparison on body satisfaction outcomes. These findings provide evidence for the role of media literacy as a protective factor against the negative effects on body satisfaction of exposure to thin-ideal media images, and also provide evidence to support the development and implementation of media literacy-based body image interventions.

Translation and validation of a Spanish version of the Sociocultural Attitudes Towards Appearance Questionnaire-4 (SATAQ-4).

OBJECTIVE: The goal of this study was to create a Spanish version of the Sociocultural Attitudes Towards Appearance Questionnaire-4 (SATAQ-4) and examine its factorial validity, reliability, and convergent validity in a sample of women from Spain. METHOD: Two hundred and sixty female college students from Spain completed the Spanish version of the SATAQ-4 and measures for eating pathology. RESULTS: Internal consistency was high; data from EFA and CFA supported the original five-factor structure; and results showed good convergent validity with measures of body-image and eating problems. DISCUSSION: Results strongly support the psychometric properties of the Spanish version of SATAQ-4 and its use to examine perceived pressure for thinness from parents, peers and the media; and thin- and muscular/athletic-ideal internalization in Spanish-speaking adult women.

Genetic and environmental influences on thin-ideal internalization across puberty and preadolescent, adolescent, and young adult development.

OBJECTIVE: Mean-levels of thin-ideal internalization increase during adolescence and pubertal development, but it is unknown whether these phenotypic changes correspond to developmental changes in etiological (i.e., genetic and environmental) risk. Given the limited knowledge on risk for thin-ideal internalization, research is needed to guide the identification of specific types of risk factors during critical developmental periods. The present twin study examined genetic and environmental influences on thin-ideal internalization across adolescent and pubertal development. METHOD: Participants were 1,064 female twins (ages 8-25 years) from the Michigan State University Twin Registry. Thin-ideal internalization and pubertal development were assessed using self-report questionnaires. Twin moderation models were used to examine if age and/or pubertal development moderate genetic and environmental influences on thin-ideal internalization. RESULTS: Phenotypic analyses indicated significant increases in thin-ideal internalization across age and pubertal development. Twin models suggested no significant differences in etiologic effects across development. Nonshared environmental influences were most important in the etiology of thin-ideal internalization, with genetic, shared environmental, and nonshared environmental accounting for approximately 8%, 15%, and 72%, respectively, of the total variance. DISCUSSION: Despite mean-level increases in thin-ideal internalization across development, the relative influence of genetic versus environmental risk did not differ significantly across age or pubertal groups. The majority of variance in thin-ideal internalization was accounted for by environmental factors, suggesting that mean-level increases in thin-ideal internalization may reflect increases in the magnitude/strength of environmental risk across this period. Replication is needed, particularly with longitudinal designs that assess thin-ideal internalization across key developmental phases.

Out of the loop: Taking a one-week break from social media leads to better self-esteem and body image among young women.

This study experimentally tested the effects of taking a one-week break from social media (SM) on body image and self-esteem among young women. Female undergraduate students (N = 66) were randomly assigned to either take a one-week break from SM or continue their normal use (control condition). State self-esteem and body satisfaction were measured at baseline (Time 1) and one week later (Time 2). As predicted, participants in the break condition reported higher body satisfaction and higher state self-esteem (total, performance, social, and appearance domains) at Time 2 than did those in the control condition, controlling for Time 1 scores. The benefits of taking a break from SM on body satisfaction were especially pronounced for women with higher baseline levels of thin-ideal internalization. The findings demonstrate the short-term benefits of taking a break from SM for one week on self-esteem and body image among young women.

The effects of brief diet and anti-diet social media videos on body image and eating concerns among young women.

The effects of photo-based platforms on body image concerns are well documented, yet it is unknown whether these effects replicate across video-based platforms such as TikTok. Thus, this experimental study aimed to examine the relationship between video-based platform use and body image. Women aged 18 to 21 (n = 421) were randomly assigned to watch two brief, consecutive TikTok videos in one of three conditions: (1) diet culture, (2) anti-diet, (3) neutral. Participants allocated to the anti-diet condition reported greater increases in weight and shape satisfaction as compared to the diet culture condition, and greater increases in state body appreciation and state intuitive eating as compared to the neutral condition. In addition, those allocated to the diet culture condition reported greater increases in restriction and urges to exercise, and smaller gains in positive mood, as compared to those in the neutral condition. Social media related rumination and thin-ideal internalization potentiated these effects.

What about being a feminist is protective? An examination of constructs related to feminist beliefs as moderators of the relationship between media awareness and thin-ideal internalization.

Feminist beliefs have been identified as a potential protective factor in the relationship between media awareness and thin-ideal internalization; however, the precise reason why feminist beliefs serve this role is unclear. A series of three studies examined the reasons why feminist beliefs may be protective in non-student samples, considering as possible explanations open-minded thinking, critical thinking, and media attitudes and literacy. Study 1 showed that the moderating role of feminist beliefs on the relationship between media awareness and thin-ideal internalization held in a non-undergraduate sample. Study 2 found that feminist beliefs and self-identifying as a feminist were related to open-minded thinking, critical thinking, and media attitudes and literacy. Study 3 found that most of these constructs did not serve the same moderating role as feminist beliefs. However, a complex relationship emerged when both feminist self-identification and media attitudes and literacy were considered simultaneously as moderators, adding to the literature emphasizing that self-identifying as a feminist has a protective role over and above that of merely holding feminist beliefs. These results suggest that feminist beliefs may be a unique combination of these constructs or that there may be yet a different reason why feminist beliefs are protective against thin-ideal internalization.

Thin, muscular, and fit-ideals: Prevalence and correlates in undergraduate women.

Objective: The current study aimed to compare endorsement of the muscular- and thin-ideals alone, as well as simultaneous endorsement of both as representative of the fit-ideal and examine potential negative correlates of each type of ideal internalization. Participants: Participants were 300 female undergraduate students. Methods: Participants completed measures of internalization of the thin- and muscular-ideals, body dissatisfaction, body checking, and body avoidance. Results: Analyses revealed that approximately 24.9% of participants endorsed scores in the upper quartile on thin-ideal internalization, and 27.4% of participants fell in the upper quartile of muscular-ideal internalization, while 10.3% endorsed high internalization of both ideals. Analyses revealed that individuals endorsing only the thin-ideal reported significantly higher levels of body dissatisfaction and body avoidance than those endorsing the fit-ideal. Conclusions: Overall, findings suggested that thin- and muscular-ideal internalization present different patterns of association depending on whether an individual endorses one or both of these body ideals.

Photo Activity on Social Networking Sites and Body Dissatisfaction: The Roles of Thin-Ideal Internalization and Body Appreciation.

Objective: According to sociocultural theory, media is associated with detrimental effects on body image. Due to the popularity of social networking sites (SNS) and the prevalence of body image disturbance among young women, the association between them is worth further exploration. This study examined the relationship between photo activity on SNS and body dissatisfaction (BD) and the roles of thin-ideal internalization (TII) and body appreciation (BA) in this relation. Materials and Methods: A total of 746 Chinese female undergraduate students (mean age 20.34 ± 1.47 years) completed a questionnaire measuring SNS photo activity, TII, BD, and BA. Results: (1) Photo activity on SNS was positively associated with BD (r = 0.10, p < 0.01), and TII could mediate this relation (ß = 0.07, 95% CI = [0.04, 0.10]). (2) Both the direct effect of SNS photo activity on BD (ß = −0.08, p < 0.05) and the mediating effect of TII (ß = −0.09, p < 0.01) were moderated by BA. Specifically, these associations were more pronounced for students with lower BA. Conclusion: People exposed to ideal photos or images can shape women's body image perception via TII, whether in the age of traditional media or the Internet, and BA did not buffer the effect of ideal photos on internalization. Our findings could provide practical suggestions for rational photo activity on SNS and the intervention for BD.

Digital Bodies: A controlled evaluation of a brief classroom-based intervention for reducing negative body image among adolescents in the digital age.

BACKGROUND: A growing body of research has linked social media use to negative body image. AIMS: The present research aimed to evaluate the efficacy of Digital Bodies, a brief classroom-based intervention that aims to improve adolescents' body image. METHODS: British adolescents (N = 290; Age M = 12.81; SD = 0.40; Range = 12-13; Female = 151) were cluster randomized to intervention or waiting list control groups. Measures of body satisfaction, appearance ideal internalization (thin and athletic ideal internalization) and self-objectification were completed at baseline (T1), 1-week post-intervention (T2) and 8-week follow-up (T3). RESULTS: Multi-level modelling showed adolescents in the intervention group reported improved body satisfaction at T2, in comparison to the control, and crucially this effect was sustained at T3. Additionally, girls reported less thin ideal internalization at T2 relative to the control, but this effect was not sustained at T3. No other intervention effects were found. CONCLUSIONS: Overall, the findings provide initial support for the efficacy of Digital Bodies as an intervention for improving adolescents' body satisfaction.

No likes, no problem? Users' reactions to the removal of Instagram number of likes on other people's posts and links to body image.

In the age of social media, "likes" are increasingly considered a numerical indicator of popularity and a measure of self-worth. Using an online questionnaire, Australian women (N = 291) aged 18-55 years self-reported their reaction to Instagram removing the visibility of the number of likes from other people's posts, and completed measures of comparison and body image. Findings showed that the majority of participants were in favour of the removal (66.7 %), followed by those who were unsure (23.4 %). Interestingly, those who did not support the removal made significantly greater appearance comparisons based on likes than those who were in favour of the removal of the number of likes. Internalization of the thin ideal mediated the relationship between investment in and comparison with likes and body dissatisfaction. Results also demonstrated that women believe removing the visibility of the number of likes may facilitate a reduction in negative self-focus (comparisons and competitiveness) and improve mental health. Future research is needed to further investigate how the visibility of likes affects women's mental health and body image outcomes in other cultural contexts and across other social media platforms.