Differences between Germans in the ‘Young’, ‘Adult’, and ‘Over-40s’ Age Groups Regarding Symptoms of Depression and Anxiety and Satisfaction with Life

Depression and anxiety, the most prevalent mental disorders worldwide, are among the top four mental disorders in Germany, and both impact life satisfaction. The prevalence of depression, anxiety, and life satisfaction in different age groups has not been sufficiently examined. The present cross-sectional study of a non-clinical sample of a German-speaking population analyzes the links between age—specifically, certain life stages—as predictors for depression and anxiety symptoms and life satisfaction. Therefore, three age groups were formed from all the participants (N = 478): ‘Young’ (18–24 years), ‘Adult’ (25–39 years), and ‘Over-40s’ (40 years and older). The German versions of the Patient Health Questionnaire (PHQ-9), the Generalized Anxiety Disorder Scale-7 (GAD-7), and the German Quality of Life Questionnaire (FLZ-A) were used for our analysis. Our statistical analysis consisted of χ2 tests and an ANCOVA for determining the associations between categorical variables. The Over 40s age group showed statistically significantly higher life satisfaction than the ‘Adult’ age group. Comparing levels of depressive or anxiety symptoms, there were no statistically significant differences across the age groups. These findings highlight the significance of considering age as a factor in understanding mental health and well-being. Further research is warranted to investigate supplementary factors that could potentially contribute to the variations observed within the different age groups.