ABSTRACT
OBJECTIVE: Early COVID-19 eating disorders (EDs) research used regionally restricted samples with little sociodemographic diversity. The present study aimed to address these research gaps by examining whether pandemic-related changes in ED symptoms and mental healthcare prevalence differed for historically marginalized groups within a national sample of US college students. METHOD: Participants included 242,906 US college students (Mage = 23.45, SD = 7.04; MBMI = 25.28, SD = 5.91) who completed the repeated cross-sectional multi-institute Healthy Minds Study between January 2019 and May 2021. Moderated logistic regressions examined whether pandemic-related changes in individuals' likelihoods of exhibiting current probable ED, reporting lifetime ED diagnoses, and-among individuals with current probable ED-mental healthcare engagement differed for diverse gender, sexual, and racial/ethnic identity groups, and by body mass index (BMI) and financial stress. RESULTS: There were increases of 5% and 12% in individuals' likelihoods of exhibiting current probable ED and symptomatic individuals' mental healthcare engagement, respectively, pre- to post-COVID-19 onset, but no pandemic-related changes in lifetime ED diagnosis prevalence. There were also important variations in these time-trends for different marginalized groups. For example, individuals identifying as genderqueer/gender nonconforming and lesbian exhibited increasing ED symptoms pre- to post-COVID-19 onset, and individuals with current probable ED and higher BMIs were increasingly likely to receive mental healthcare. Associations between financial stress, and the ED and mental healthcare outcomes did not change over time. DISCUSSION: These findings provide insight into groups of US college students that experienced disproportionate ED burden during the pandemic at the population level, and directions for research and interventions that warrant consideration.