title: Internet-based preventive intervention for reducing eating disorder risk: A randomized controlled trial comparing guided with unguided self-help.
abstract: Student Bodies, an internet-based intervention, has successfully reduced weight/shape concerns and prevented eating disorders in a subset of college-age women at highest risk for an eating disorder. Student Bodies includes an online, guided discussion group; however, the clinical utility of this component is unclear. This study investigated whether the guided discussion group improves program efficacy in reducing weight/shape concerns in women at high risk for an eating disorder. Exploratory analyses examined whether baseline variables predicted who benefitted most. Women with high weight/shape concerns (N = 151) were randomized to Student Bodies with a guided discussion group (n = 74) or no discussion group (n = 77). Regression analyses showed weight/shape concerns were reduced significantly more among guided discussion group than no discussion group participants (p = 0.002; d = 0.52); guided discussion group participants had 67% lower odds of having high-risk weight/shape concerns post-intervention (p = 0.02). There were no differences in binge eating at post-intervention between the two groups, and no moderators emerged as significant. Results suggest the guided discussion group improves the efficacy of Student Bodies in reducing weight/shape concerns in college students at high risk for an eating disorder.
authors.affiliation: Department of Psychology, Washington University in St. Louis, 660 South Euclid Avenue, Campus Box 8134, St. Louis, MO 63110, USA.
authors.forename: Andrea E
authors.initials: AE
authors.lastname: Kass
authors.affiliation: Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, MC 5722, Stanford, CA 94305, USA.
authors.forename: Mickey
authors.initials: M
authors.lastname: Trockel
authors.affiliation: Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, MC 5722, Stanford, CA 94305, USA.
authors.forename: Debra L
authors.initials: DL
authors.lastname: Safer
authors.affiliation: Department of Psychology, The College of William and Mary, Integrated Science Center, Room 1223, P.O. Box 8795, Williamsburg, VA 23187, USA.
authors.forename: Meghan M
authors.initials: MM
authors.lastname: Sinton
authors.affiliation: Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, MC 5722, Stanford, CA 94305, USA.
authors.forename: Darby
authors.initials: D
authors.lastname: Cunning
authors.affiliation: Department of Psychiatry, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8134, St. Louis, MO 63110, USA.
authors.forename: Marianne T
authors.initials: MT
authors.lastname: Rizk
authors.affiliation: Department of Psychiatry, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8134, St. Louis, MO 63110, USA.
authors.forename: Brooke H
authors.initials: BH
authors.lastname: Genkin
authors.affiliation: Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, MC 5722, Stanford, CA 94305, USA.
authors.forename: Hannah L
authors.initials: HL
authors.lastname: Weisman
authors.affiliation: Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, MC 5722, Stanford, CA 94305, USA.
authors.forename: Jakki O
authors.initials: JO
authors.lastname: Bailey
authors.affiliation: Technische Universität Dresden, Klinische Psychologie und Psychotherapie, Chemnitzer Str. 46, D-01187 Dresden, Germany.
authors.forename: Corinna
authors.initials: C
authors.lastname: Jacobi
authors.affiliation: Department of Psychology, Washington University in St. Louis, 660 South Euclid Avenue, Campus Box 8134, St. Louis, MO 63110, USA; Department of Psychiatry, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8134, St. Louis, MO 63110, USA. Electronic address: wilfleyd@psychiatry.wustl.edu.
authors.forename: Denise E
authors.initials: DE
authors.lastname: Wilfley
authors.affiliation: Department of Psychology, The College of William and Mary, Integrated Science Center, Room 1223, P.O. Box 8795, Williamsburg, VA 23187, USA.
authors.forename: C Barr
authors.initials: CB
authors.lastname: Taylor
mesh_terms: D057215:Body Dysmorphic Disorders / Q000517:prevention & control*; D001835:Body Weight; D015928:Cognitive Behavioral Therapy / Q000379:methods*; D001068:Feeding and Eating Disorders / Q000517:prevention & control* / Q000523:psychology; D005260:Female; D006801:Humans; D020407:Internet; D010349:Patient Compliance; D012648:Self Care / Q000379:methods; D013813:Therapy, Computer-Assisted / Q000379:methods; D016896:Treatment Outcome; D055815:Young Adult
keywords: Eating disorders; Guided self-help; Internet treatment; Prevention; Randomized controlled trial