MeMo-project: mediators and moderators of school-based interventions aimed at energy balance behaviours

Background

The prevalence of obesity had increased steadily for the past several decades. Particularly alarming are the increasing rates of overweight and obesity among children, portending continuing increases in the rates of obesity and obesity-related diseases for many years to come. Obesity is the long-term consequence of gradual increases in body weight due to a sustained positive energy balance, in which energy intake exceeds energy expenditure. To improve the effectiveness of interventions aimed at improving energy balance behaviours, there is a need to identify how (mediator analysis), for whom (personal moderator analysis), and under what circumstances (situational moderator analysis) these interventions can lead to improvement of energy balance behaviour. To date, intervention studies have typically restricted their analyses to overall effects; few projects have used their data for a careful analysis if mediators of intervention effects. In addition, few studies have analysed if these effects were more prominent among or restricted to certain subgroups (moderators). The MeMo-project is unique in that it combines data of relevant state-of-the-art intervention studies from different countries to address this gap in knowledge.

WCRF Grant Number

WCRF 2008/65

World Cancer Research Fund Website: www.wcrf.org