Racial/ethnic differences in anorexia and bulimia diagnoses among U.S. college students

This study examined the prevalence of anorexia nervosa (AN) and bulimia nervosa (BN) diagnoses among college students from different racial/ethnic backgrounds. Utilizing archival data from the American College Health Association - National College Health Assessment II-C (ACHA-NCHA II-C), information from 426,425 college students collected between 2015 and 2019 was examined. Binary logistic regression analyses were conducted to determine the prevalence of AN and BN diagnoses among various racial and ethnic groups. The highest odds of AN diagnosis were observed among American Indian, Alaska Native, or Native Hawaiian (AI/AN/NH) students, with odds ranging from 2.143 (compared to White students) to 3.744 (compared to Black students). White students had higher odds of AN than Black (OR = 1.748), Hispanic/Latino (OR = 1.706), and Asian (OR = 1.531) students. Biracial/Multiracial students had significantly higher odds of AN than Black (OR = 1.653), Hispanic/Latino (OR = 1.616), and Asian (OR = 1.449) students. In terms of BN diagnoses, AI/AN/NH students had the highest odds compared to all other groups, ranging from 2.149 (compared to White students) to 2.899 (compared to Hispanic/Latino students). White students had higher odds of BN than Black (OR = 1.271) and Hispanic/Latino (OR = 1.350) students. Biracial/Multiracial students also had significantly higher odds of BN than Black (OR = 1.388) and Hispanic/Latino (OR = 1.474) students. Asian students had higher odds of BN than Black (OR = 1.252) and Hispanic/Latino (OR = 1.329) students. These findings demonstrate complex patterns of AN and BN diagnoses among different racial/ethnic groups. These results highlight the need for culturally sensitive prevention and treatment plans on college campuses.