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.2017 Apr 25:8:579.
doi: 10.3389/fpsyg.2017.00579. eCollection 2017.

Binge Eating Disorder (BED) in Relation to Addictive Behaviors and Personality Risk Factors

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Binge Eating Disorder (BED) in Relation to Addictive Behaviors and Personality Risk Factors

Caroline Davis et al. Front Psychol..

Abstract

While there is good evidence that binge eating disorder (BED) is linked to higher-than-expected use of a broad range of addictive behaviors, mechanisms underlying this association are not well understood. Using a mediation-analytical approach with three age- and gender-matched groups - overweight/obese adults with (n = 42) and without (n = 104) BED, and normal-weight control participants (n = 73) - we tested the hypothesis that adults with BED would engage in more addictive behaviors and have higher scores on a personality-risk index than the two control groups. We also anticipated that the relationship between BED and addictive behaviors would be mediated by a high-risk personality profile. The predicted mediation effect was strongly supported. Contrary to expectation, BED participants did not engage in more addictive behaviors or have higher personality-risk scores than their weight-matched counterparts. However, both overweight/obese groups did have significantly higher scores than the normal-weight group. The relationships among personality risk, elevated body mass index (BMI), and addictive behaviors have important clinical implications, especially for treatments that target psycho-behavioral intervention for compulsive overeating and substance-use disorders.

Keywords: addictive behaviors; binge eating disorder; personality risk.

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Figures

FIGURE 1
FIGURE 1
A model proposing that a high-risk personality profile mediates the relationship between binge eating disorder (BED) status and frequency/severity of addictive behaviors. The resultingp-values for paths A and C, and for paths B and C’, were derived from analysis of variance (ANOVA) and least squares regression, respectively.
FIGURE 2
FIGURE 2
Path A results: Personality-risk differences among the BED and control groups.
FIGURE 3
FIGURE 3
Path C results: Addictive behavior differences among the BED and control groups.
See this image and copyright information in PMC

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