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  • Title: Toward an understanding of the distinctiveness of body-image constructs in persons categorized with overweight/obesity, bulimia nervosa, and binge-eating disorder.
    Author: Grilo CM, Ivezaj V, Lydecker JA, White MA.
    Journal: J Psychosom Res; 2019 Nov; 126():109757. PubMed ID: 31522010.
    Abstract:
    OBJECTIVE: We examined distinctiveness of different aspects of body-image disturbance in persons categorized with eating/weight disorders. We compared dissatisfaction with weight/shape, overvaluation of weight/shape, preoccupation with weight/shape, and fear of weight gain - in three study groups of persons categorized with overweight/obesity [O/O], bulimia nervosa [BN], and binge-eating disorder [BED] and examined how each body-image construct relates to clinical measures within and between the study groups. METHOD: 1017 community volunteers completed measures of body-image, eating-disorder psychopathology, and depression. Participants were categorized into three study groups: O/O (N = 511), BN-purging type (N = 167), and BED (N = 339). RESULTS: Groups differed significantly on the four body-image constructs (medium-to-large effect sizes) with a consistent severity gradient with BN greater than BED greater than O/O. Both within and between groups, the four body-image constructs varied in strengths of association among themselves and with clinical measures. Analyses revealed considerable variability in variance accounted for in the clinical measures; distinctive significant patterns observed across the groups included: dissatisfaction with BMI, preoccupation and fear with eating concerns and restraint, and overvaluation with depression. CONCLUSION: Clinical manifestations of body-image disturbances are complex and show important differences across study groups defined as overweight/obesity, BN, and BED. Improved understanding of distinctions between different body-image constructs and their differential salience across different eating/weight disorders is needed to improve case conceptualization and treatment formulation.
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