Trait-level and momentary correlates of bulimia nervosa with a history of anorexia nervosa.
Goldschmidt AB, et al.
Int J Eat Disord. 2012 Sep 18.
OBJECTIVE: Some investigators have suggested subtyping bulimia nervosa (BN) by anorexia nervosa (AN) history. We examined trait-level and momentary eating-related and psychosocial factors in BN with and without an AN history.
METHOD: Interview, questionnaire, and ecological momentary assessment data of eating-related and psychological symptoms were collected from 122 women with BN, including 43 with (BN+) and 79 without an AN history (BN-).
RESULTS: Body mass index (kg/m(2) ) was lower in BN+ than BN- (p = 0.001). Groups did not differ on trait-level anxiety, shape/weight concerns, psychiatric comorbidity, or dietary restraint; or on momentary anxiety, dietary restriction, binge eating, purging, or exercise frequency, or affective patterns surrounding binge/purge behaviors. Negative affect increased prior to exercise and decreased thereafter in BN+ but not BN-, although groups did not statistically differ.
DISCUSSION: Results do not support formally subtyping BN by AN history. Exercise in BN+ may modulate negative affect, which could have important treatment implications.
Source: Department of Psychiatry and Behavioral Neuroscience, The University of Chicago, Chicago, Illinois.
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