In the AN Trios Study, healthy control women were recruited to serve as a comparison group for the affected individuals. These women were recruited by advertisements in the local communities of the participating sites. Participants in the control group were (1) between the ages of 18 and 65 years, (2) at normal weight with a lifetime adult BMI 19–27 kg/m2, and (3) matched with the eating disorder participants based on site, age range, ancestry, and highest educational level completed. BMI exclusions were designed to screen for eating disorders (on the low end) and obesity on the upper end to be consistent with exclusion criteria in the eating disorders groups. Participants in the control group were excluded if they: (1) reported history of an eating disorder or eating disordered behaviors, as defined by a score of 20 or higher on the Eating Attitudes Test [Garner et al., 1982]; (2) had a first degree relative with an eating disorder; or (3) had any of the following as defined by the presence of an Axis I disorder on the Structured Clinical Interview for
