“…In several studies (Dally & Gomez, 1979;Garfinkel et al, 1980;Halmi, Goldberg, Eckert, Casper, & Davis, 1977;Theander, 1970), the prevalence of anorexia nervosa among the sisters of patients has ranged from 3% to 10%, which greatly exceeds rates in the general population. Crisp et al (1980) reported a family history of probable anorexia nervosa (definitional criteria unspecified) to have been present in 29% of 102 cases, whereas Kalucy, Crisp, and Harding (1977) reported a history of low adolescent weight and peculiar dietary habits, anorexia nervosa, or severe weight phobia in 27% of the mothers and in 16% of the fathers of 56 cases. In other studies (Hall, 1978;Hudson et al, 1983), the proportion of patients with positive family histories has ranged from 4% to 7%, and the estimated prevalence in first-degree relatives has ranged from 4% to 6%.…”