Factors affecting the dose of intervention received and the participant satisfaction in a school-based obesity prevention intervention

Abstract

This study assessed factors associated with the perceived dose of intervention received and with the participantsatisfaction in a school-based obesity prevention intervention. It also explored the variance in the dose of in-tervention received that was at the school level. Process evaluation data from a school-based intervention studyconducted in Oslo in 2007–2009 were used. A total of 542 11-year-olds from 12 intervention schools wereincluded. A web-based questionnaire was used to collect data. Descriptive analyses and multilevel regressionanalyses were conducted. Females and those with medium (vs. low) parental education had higher odds ofreporting a high vs. low dose of intervention received at mid-way (8 months after baseline). Perceived socialcapital and perceived social support for physical activity from friends at baseline were positively associated withthe dose of intervention received at mid-way. Perceived social capital at mid-way was positively associated withthe dose of intervention reported post-intervention (20 months after baseline). Around 20% of the variance inthe perceived dose of intervention received was at the school level. Satisfaction with the intervention was highoverall and higher for females for several intervention components at mid-way and at post-intervention. Thefactors identified in this study should be taken into consideration when planning future obesity preventioninterventions among youth.