title: Depression as a moderator of benefit from Media Smart: a school-based eating disorder prevention program.
abstract: OBJECTIVE
  To investigate if baseline depression moderated response to Media Smart, an 8-lesson school-based program previously found to achieve a long-term risk reduction effect in young adolescents.
  
  
  METHODS
  540 Grade 8 students (M age = 13.62 years, SD = .37) from 4 schools participated with 11 classes receiving the Media Smart program (126 girls; 107 boys) and 13 comparison classes receiving their normal lessons (147 girls; 160 boys). Shape and weight concern, media internalization, body dissatisfaction, dieting, ineffectiveness, and perceived pressure were the outcome variables.
  
  
  RESULTS
  Moderation was indicated by significant interaction effects for group (Media Smart; Control) × moderator (high depression; low depression) × time (post-program; 6-month follow-up; 2.5-year follow-up), with baseline entered as a covariate. Such effects were found for shape and weight concern, media internalization, body dissatisfaction, ineffectiveness and perceived pressure. Post-hoc testing found high depression Media Smart participants scored significantly lower than their control counterparts at post-program on shape and weight concern, media internalization and dieting, whereas low depression Media Smart participants scored significantly lower on shape and weight concern at 2.5-year follow-up.
  
  
  CONCLUSIONS
  Media Smart achieved a reduction in eating disorder risk factors for high-depression participants and a reduced rate of growth in risk factor scores for low-depression participants. Trial registry name: Australian New Zealand Clinical Trials Registry. URL: http://www.anzctr.org.au. Registration identification number: ACTRN12608000545369.
authors.affiliation: School of Psychology, Flinders University, PO Box 2100, Adelaide, SA 5001, Australia. Electronic address: simon.wilksch@flinders.edu.au.
authors.forename: Simon M
authors.initials: SM
authors.lastname: Wilksch
authors.affiliation: School of Psychology, Flinders University, PO Box 2100, Adelaide, SA 5001, Australia.
authors.forename: Tracey D
authors.initials: TD
authors.lastname: Wade
mesh_terms: D000293:Adolescent; D003866:Depressive Disorder / Q000523:psychology*; D001068:Feeding and Eating Disorders / Q000517:prevention & control* / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D012307:Risk Factors; D012572:School Health Services; D013021:South Australia; D013334:Students / Q000523:psychology; D011795:Surveys and Questionnaires; D016896:Treatment Outcome
keywords: Depression; Eating disorders; Moderator; Prevention; Risk factors