Sociodemographic and psychological characteristics associated with discrepancy between body satisfaction and weight change among adolescents

This study aimed to describe the discrepancy between body satisfaction change and weight among adolescents following a 2-year school-based intervention, identify associated sociodemographic factors, explore possible associations with perceived health indicators. We used data from northeastern France representative sample (14–18 years old) who participated in PRALIMAP (PRomotion de l'ALIMentation et l'Activité Physique) (2006–2009). Weight was measured by mass index z-score start end of study. Body self-perceived (anxiety, depression, eating disorder quality life) changes were assessed using self-administered questionnaires. Discrepancy described cross-tabulations, subdivided into optimism/pessimism (i.e. positive/negative compared change). Sociodemographic factors determined multivariate logistic regression models. Adjusted linear models according discrepancy. Among 3279 included (aged 15.1 ± 0.6 years), proportion 74.8% (pessimism = 41.6%; optimism 33.2%). Discrepancy, especially pessimism, higher boys than girls (OR 1.44 [1.19; 1.74], p .0002), socially advantaged 1.82 [1.20; 2.74], .004) disadvantage ones. rather line anxiety, depression life change. should be considered overweight obesity prevention interventions alongside change, could as indicator long-term behavior maintenance. Clinical trials registry number:ClinicalTrials.gov (NCT01688453).