Recruitment strategies to increase racial and ethnic diversity in anorexia nervosa clinical research

Objective Inclusion of underrepresented racial and ethnic groups in eating disorder (ED) research is a critical unmet need, but evidence-based recruitment strategies are lacking. We sought to determine whether methods we had implemented to increase recruitment of underrepresented racial and ethnic groups were successful in improving racial and ethnic diversity in a clinical trial in women with anorexia nervosa. Method We implemented new strategies for recruitment of underrepresented racial and ethnic groups in a clinical trial on bone health in women with anorexia nervosa, including leveraging social media, liberalizing language on advertisements to be more inclusive of women who are as yet undiagnosed with the disorder or feel stigmatized by its name, translating advertisements to Spanish, and engaging community health centers. We compared participants’ race and ethnicity in this clinical trial versus two similar prior clinical trials. Results The percent of non-White and Hispanic participants who have signed a consent form in our ongoing clinical trial (2021–2023) is higher versus two previous clinical trials on bone health in women with anorexia nervosa (2011–2019) with similar inclusion/exclusion criteria and endpoints [non-White: 11/38 (28.9%) vs. 11/188 (5.9%), Hispanic: 6/38 (15.8%) vs. 5/188 (2.7%), p ≤ 0.006]. There was no change in the percent of Black participants [0/38 (0%) vs. 1/188 (0.5%), p = 1.0]. Discussion Viewing clinical research recruitment through a diversity, equity, and inclusion lens can improve racial and ethnic diversity in ED research. Further research recruitment strategies are needed to be more inclusive of Black populations.