P0358 - Bulimia nervosa vs. binge eating disorder: Common and differential clinical and personality correlates

Abstract

Aims:

The objective of this study was to analyze clinical and personality differences in three groups of patients with eating disorders: binge eating disorder (BED), bulimia nervosa- purging type (BN-P) and bulimia nervosa-non purging type (BN-NP).

Methods:

The participants were 102 female patients (34 BED, 34 BN-P and 34 BN-NP), mean age 28.7. Assessment measures included the following tests: EDI-2, BITE, EAT-40, SCL-90-R and TCI-R, and other clinical and psychopathological indices that were collected via semi-structured interview.

Results:

When compared all three groups, BED were the oldest group, showed more frequent familial history of obesity and current or lifetime obesity. Regarding psychopathology, BN-P patients showed the most pathological scores, followed by BN-NP patients and BED patients showing the least pathological scores. Specifically, BN-P patients showed statistically higher scores than BED patients on SCL-90-R Paranoid Ideation, EAT-40 total score, EDI-2 Impulsivity subscale, and BITE Severity subscale. No statistically significant differences were observed among groups, on personality traits. A two-step cluster analysis procedure was conducted, to determine the clinical proximity among the three diagnostic groups. The relationship between cluster classification and diagnosis was statistically different (p<0.001), so we can assume that the present classification maybe does not classify accurately eating disorders.

Conclusions:

Even when BED patients present differential characteristics with respect to family and personal antecedents when compared to BN patients, clinical and psychopathological overlapping with BN-NP makes them similar. Likewise, our results suggest deficiencies in the current nosological system, since it does not group patients’ subgroups which are homogeneous enough.