Peer Relationships and Depressive Symptoms Among Adolescents: Results From the German BELLA Study

Background: Poor mental health affects adolescent development and is associated with health and social outcomes in later life. The current study uses cross-sectional data to explore the understudied aspects of peer relationships as a predictor of depressive symptom severity of adolescents in Germany.Method: Data from the German BELLA study were analyzed. We focused on the most recent measurement point of the BELLA study and analyzed data of 446 adolescents (aged 14–17 years). Peer relationship was measured using four items from the internationally established Patient-Reported Outcome Measurement Information System (PROMIS). Depressive symptoms were assessed via seven items of the German version of the Centre for Epidemiological Studies Short Depression Scale (CES-D). Hierarchical linear regression models were computed to explore the association between depressive symptoms and peer relationships. Hierarchical linear regression models served to determine the added predictive effects of each aspect of peer relationships.Result: The regression model showed that 22% of the variance of the severity of depressive symptoms could be explained by the quality of adolescents’ peer relationships (F(1,444) = 125.65, p < 0.001). Peer acceptance has the most substantial unique contribution to peer relationship as a predictor of depressive symptom severity (Change in R2 = 0.05; Change in F = 27.01, p < 0.001). The gender-specific analysis shows different trends for boys and girls.Conclusion: The quality of peer relationships is a significant predictor of adolescents’ depressive symptoms severity. Improved peer acceptance, dependability, and ease of making new friends are significantly associated with reduced depression symptoms for Germany’s adolescent population.

Mental health and well-being from childhood to adulthood: design, methods and results of the 11-year follow-up of the BELLA study

Mental health and well-being are of great interest in health policy and research. Longitudinal surveys are needed to provide solid population-based data. We describe the design and methods of an 11-year follow-up of the German BELLA study in children, adolescents and young adults, and we report on age- and gender-specific courses of general health and well-being, long-term health-related outcomes of mental health problems, and mental health care use. The BELLA study is the module on mental health and well-being within the German Health Interview and Examination Survey for Children and Adolescents (KiGGS). Standardised measures were used at each of the five measurement points of the BELLA study. In the 11-year follow-up, young people aged 7–31 years participated (n = 3492). Individual growth modelling, linear regression and descriptive analyses were conducted. Self-reported general health and well-being were both better in younger (vs. older) and in male (vs. female) participants according to the data from all five measurement points. Mental health problems in childhood and adolescence (measured at baseline) predicted impaired health outcomes at 6-year and 11-year follow-ups. Approximately one out of four children with a diagnosed mental disorder was not undergoing mental health treatment. With its 11-year follow-up, the prospective longitudinal BELLA study provides new and solid data on mental health and well-being from childhood to adulthood in Germany, and these data are important for health promotion and prevention practices. These results are consistent with previous findings. Promising future analyses are planned.

Mental health from childhood to adulthood: Results of the 11-year follow-up of the BELLA study

Background Mental health problems in children, adolescents and young adults are highly prevalent and cause a significant burden for both individuals and society, resulting in a high relevance to public health. Longitudinal studies are needed to provide profound population-based data on mental health and well-being. In the present study, first results of the 11-year follow-up of the German BELLA study are presented. These include age- and gender-specific courses of general health and well-being, long-term health outcomes of mental health problems, and the utilisation of mental health services. Methods The longitudinal BELLA study is the module on mental health and well-being within the German Health Interview and Examination Survey for Children and Adolescents (KiGGS). The BELLA study has gathered data since 2003 at five measurement points using standardised measures. In the most recent 11-year follow-up, N = 3,492 young people aged 7 to 31 years participated. Individual growth modeling, linear regression and descriptive analyses were conducted. Results Self-reported general health and well-being were both better in younger than older and in male compared to female participants using data from all five measurement points. Mental health problems in childhood and adolescence (measured at baseline) were associated with adverse general, mental and physical health outcomes at 6-year and 11-year follow-ups. About 75 % of children and adolescents with a diagnosed mental disorder were under mental health treatment. Conclusions With its 11-year follow-up, the longitudinal BELLA study provides new data on mental health and well-being in German children, adolescents and young adults. Our findings are important for the development of targeted mental health promotion and early prevention strategies. Promising future analyses are planned. Key messages The BELLA study provides data on developmental trajectories of mental health from childhood to adulthood, on long-term health outcomes of mental health problems and on mental health care use. The findings of the present study are of great relevance for the development of targeted health promotion and prevention programs.