Shape and weight concern as a moderator of program outcomes from the Prevention Across the Spectrum RCT

Simon Wilksch,S Bryn Austin,Tracey Wade,Susan Paxton,Susan Byrne

doi:10.1186/2050-2974-3-s1-o28

Simon Wilksch, S Bryn Austin + Show 3 more

Open Access

https://doi.org/10.1186/2050-2974-3-s1-o28

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Abstract

Results Moderation was indicated by significant interaction effects for group (Media Smart; Life Smart; HELPP; Control) X moderator (high shape and weight concern; low shape and weight concern) X time (post-program; 6-month followup; 12-month follow-up), with baseline entered as a covariate. Such effects were found for shape concern, weight concern, eating concern, regular eating, body dissatisfaction, and physical activity. Post-hoc testing found Media Smart participants with high baseline shape and weight concern experienced a reduction in risk at 12-month follow-up for 4 of the 6 variables. Discussion This study shows it is possible for a school-based program to reduce eating disorder risk factors in participants with high baseline risk of an eating disorder.

Highlights

N = 1,316 Grade 7 and 8 girls and boys (M age = 13.21 years) across three Australian states were randomly allocated to: Media Smart; Life Smart; Helping, Encouraging, Listening and Protecting Peers Initiative (HELPP) or control
To investigate if baseline shape and weight concern moderated outcomes in the Prevention Across the Spectrum trial, a randomised-controlled trial (RCT) of 3 schoolbased programs aimed at reducing eating disorder and obesity risk factors
Moderation was indicated by significant interaction effects for group (Media Smart; Life Smart; HELPP; Control) X moderator X time, with baseline entered as a covariate

Summary

Introduction

Simon Wilksch1*, Tracey Wade1, Susan Paxton2, Susan Byrne3, S Bryn Austin4,5 From 2015 ANZAED Conference: Riding the Waves to Recovery Surfers Paradise, Australia. Objective To investigate if baseline shape and weight concern moderated outcomes in the Prevention Across the Spectrum trial, a randomised-controlled trial (RCT) of 3 schoolbased programs aimed at reducing eating disorder and obesity risk factors.

Results

Conclusion