title: Understanding the association of impulsivity, obsessions, and compulsions with binge eating and purging behaviours in anorexia nervosa.
abstract: OBJECTIVE
  To further refine our understanding of impulsivity, obsessions, and compulsions in anorexia nervosa (AN) by isolating which behaviours--binge eating, purging, or both--are associated with these features.
  
  
  METHODS
  We conducted regression analyses with binge eating, purging, and the interaction of binge eating with purging as individual predictors of scores for impulsivity, obsessions, and compulsions in two samples of women with AN (n = 1373).
  
  
  RESULTS
  Purging, but not binge eating, was associated with higher scores on impulsivity, obsessions, and compulsions. Purging was also associated with worst eating rituals and with worst eating preoccupations.
  
  
  CONCLUSIONS
  Our results suggest that purging, compared with binge eating, may be a stronger correlate of impulsivity, obsessions, and compulsions in AN.
authors.affiliation: Department of Psychiatry, University of North Carolina, Chapel Hill, NC, USA.
authors.forename: Elizabeth R
authors.initials: ER
authors.lastname: Hoffman
authors.forename: Danielle A
authors.initials: DA
authors.lastname: Gagne
authors.forename: Laura M
authors.initials: LM
authors.lastname: Thornton
authors.forename: Kelly L
authors.initials: KL
authors.lastname: Klump
authors.forename: Harry
authors.initials: H
authors.lastname: Brandt
authors.forename: Steve
authors.initials: S
authors.lastname: Crawford
authors.forename: Manfred M
authors.initials: MM
authors.lastname: Fichter
authors.forename: Katherine A
authors.initials: KA
authors.lastname: Halmi
authors.forename: Craig
authors.initials: C
authors.lastname: Johnson
authors.forename: Ian
authors.initials: I
authors.lastname: Jones
authors.forename: Allan S
authors.initials: AS
authors.lastname: Kaplan
authors.forename: James E
authors.initials: JE
authors.lastname: Mitchell
authors.forename: Michael
authors.initials: M
authors.lastname: Strober
authors.forename: Janet
authors.initials: J
authors.lastname: Treasure
authors.forename: D Blake
authors.initials: DB
authors.lastname: Woodside
authors.forename: Wade H
authors.initials: WH
authors.lastname: Berrettini
authors.forename: Walter H
authors.initials: WH
authors.lastname: Kaye
authors.forename: Cynthia M
authors.initials: CM
authors.lastname: Bulik
mesh_terms: D000293:Adolescent; D000328:Adult; D000856:Anorexia Nervosa / Q000150:complications* / Q000523:psychology; D002032:Bulimia / Q000150:complications* / Q000523:psychology; D003192:Compulsive Behavior / Q000150:complications* / Q000523:psychology; D005260:Female; D006801:Humans; D007175:Impulsive Behavior / Q000150:complications* / Q000523:psychology; D009770:Obsessive Behavior / Q000150:complications* / Q000523:psychology; D014839:Vomiting / Q000150:complications* / Q000523:psychology