Is the Effect of Body Dissatisfaction on Depressive Symptoms Dependent on Weight Status? A Study with Early-to-Middle Adolescents.

Depression is a recognized mental health problem in adolescence and body dissatisfaction is an important risk factor. The main goal of this study is to examine the relationship between body dissatisfaction and depressive symptoms, and whether it depends on adolescents' weight status, an issue that remains understudied. Two hundred and fourteen adolescents (12-16 years) completed self-report measures of depressive symptoms, body dissatisfaction and weight status (i.e., current body weight and height, to compute body mass index z-scores, BMIz). Hierarchical multiple regression and moderation analyses were conducted, accounting for gender and age effects on depressive symptoms. Body dissatisfaction was found to be a predictor of depressive symptoms for the low and median BMIz adolescents, but not for those with high BMIz. In addition, this interaction of body dissatisfaction and BMIz improved the ability of the regression model to explain depressive symptoms´ variance beyond the effect of gender and age. The high-BMIz adolescents presented higher body dissatisfaction but similar levels of depressive symptoms, compared to the lower BMIz adolescents. These findings suggest the influence of body dissatisfaction in the emergence of depressive symptoms in the first half of adolescence, and the importance of weight status throughout this path.