Longitudinal Study of Life Events,Well-Being,Emotional Regulation and Depressive Symptomatology

Etiological research regarding adolescent depression is relatively recent and longitudinal studies are needed to explicate the mechanisms by which risk and protective factors impact the development of depression. This investigation evaluated the effects of time 1 predictors (e.g., depressive symptoms, life events, subjective well-being, and emotion regulation strategies) on depressive symptoms assessed at time 2 (1 year later). The sample comprised 182 Portuguese adolescents, aged 12–16. Time 1 depressive symptoms and psychological well-being were significant predictors of time 2 depressive symptoms. Time 1 rumination predicted time 2 depressive symptoms, but time 2 brooding mediated this effect. Time 1 life events did not predict time 2 depressive symptomatology. This study identified several factors that seem to play an important role in the development of depressive symptomatology. Previous depressive symptomatology and well-being had a significant effect in this process and the relationship between rumination in time 1 and depressive symptoms at time 2 (1 year later) was fully mediated by brooding at time 2. Given these results, implications for prevention and treatment of depression include addressing risk factors like early depressive symptoms, rumination and brooding, and increasing the protective effect of psychological well-being.