Ethnic differences in eating disorder symptoms among college students: the confounding role of body mass index.

Eating disorders are among the most common psychopathologies on college campuses. Research on ethnic differences in eating disorder symptoms and prevalence has resulted in conflicting conclusions. Some studies find that particular ethnic groups have a higher prevalence of a symptom; others find that members of that ethnic group have a lower prevalence of the same symptom. The authors explored the role of body mass index (BMI), one potential confound. They used a reliable measure of eating disorder symptoms to assess differences between Hispanic, Asian, and non-Hispanic White college women from two separate samples. After controlling for BMI, ethnic differences in eating disorder symptoms of concern about weight and shape disappeared, but differences in restrained eating remained. Inconsistent findings in the ethnic-difference literature on eating disorders may result from systematic group differences in BMI. Implications for college health programs, counseling, and case finding are discussed.