Vivienne M Hazzard1, Ross D Crosby1,2, Scott J Crow3,4, Scott G Engel1, Lauren M Schaefer1, Timothy D Brewerton5, Giovanni Castellini6, Kathryn Trottier7, Carol B Peterson3, Stephen A Wonderlich1,2. 1. Sanford Center for Biobehavioral Research, Fargo, North Dakota, USA. 2. Department of Psychiatry and Behavioral Science, University of North Dakota School of Medicine and Health Sciences, Fargo, North Dakota, USA. 3. Department of Psychiatry and Behavioral Sciences, University of Minnesota Medical School, Minneapolis, Minnesota, USA. 4. The Emily Program, St. Paul, Minnesota, USA. 5. Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina, Charleston, South Carolina, USA. 6. Department of Health Sciences, Psychiatry Unit, University of Florence, Florence, Italy. 7. Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.
Abstract
OBJECTIVE: To examine childhood abuse and post-traumatic stress disorder (PTSD) as predictors and moderators of binge-eating disorder (BED) treatment outcomes in a randomized controlled trial comparing Integrative Cognitive-Affective Therapy with cognitive-behavioural therapy administered using guided self-help. METHOD: In 112 adults with BED, childhood abuse was defined as any moderate/severe abuse as assessed by the Childhood Trauma Questionnaire, lifetime PTSD was assessed via the Structured Clinical Interview for DSM-IV, and outcomes were assessed via the Eating Disorder Examination (EDE). Covariate-adjusted regression models predicting binge-eating frequency and EDE global scores at end of treatment and 6-month follow-up were conducted. RESULTS: Lifetime PTSD predicted greater binge-eating frequency at end of treatment (B = 1.32, p = 0.009) and childhood abuse predicted greater binge-eating frequency at follow-up (B = 1.00, p = 0.001). Lifetime PTSD moderated the association between childhood abuse and binge-eating frequency at follow-up (B = 2.98, p = 0.009), such that childhood abuse predicted greater binge-eating frequency among participants with a history of PTSD (B = 3.30, p = 0.001) but not among those without a PTSD history (B = 0.31, p = 0.42). No associations with EDE global scores or interactions with treatment group were observed. CONCLUSIONS: Results suggest that a traumatic event history may hinder treatment success and that PTSD may be more influential than the trauma exposure itself.
OBJECTIVE: To examine childhood abuse and post-traumatic stress disorder (PTSD) as predictors and moderators of binge-eating disorder (BED) treatment outcomes in a randomized controlled trial comparing Integrative Cognitive-Affective Therapy with cognitive-behavioural therapy administered using guided self-help. METHOD: In 112 adults with BED, childhood abuse was defined as any moderate/severe abuse as assessed by the Childhood Trauma Questionnaire, lifetime PTSD was assessed via the Structured Clinical Interview for DSM-IV, and outcomes were assessed via the Eating Disorder Examination (EDE). Covariate-adjusted regression models predicting binge-eating frequency and EDE global scores at end of treatment and 6-month follow-up were conducted. RESULTS: Lifetime PTSD predicted greater binge-eating frequency at end of treatment (B = 1.32, p = 0.009) and childhood abuse predicted greater binge-eating frequency at follow-up (B = 1.00, p = 0.001). Lifetime PTSD moderated the association between childhood abuse and binge-eating frequency at follow-up (B = 2.98, p = 0.009), such that childhood abuse predicted greater binge-eating frequency among participants with a history of PTSD (B = 3.30, p = 0.001) but not among those without a PTSD history (B = 0.31, p = 0.42). No associations with EDE global scores or interactions with treatment group were observed. CONCLUSIONS: Results suggest that a traumatic event history may hinder treatment success and that PTSD may be more influential than the trauma exposure itself.
Authors: Tyler B Mason; Jason M Lavender; Stephen A Wonderlich; Howard Steiger; Li Cao; Scott G Engel; James E Mitchell; Ross D Crosby Journal: J Nerv Ment Dis Date: 2017-05 Impact factor: 2.254
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