Little is known about the relationship between bulimia nervosa and the various anxiety disorders. These disorders are common among patients with bulimia nervosa, and they may antedate the disorderA9,29) There has been just one family genetic study of the relationship between an anxiety disorder and bulimia nervosa. It found that there was an increased risk of obsessive-compulsive disorder among the relatives of these patients, but this was confined to those probands who themselves had a history of the disorder. (39
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