[Mental health of children and adolescents in times of global crises: findings from the longitudinal COPSY study from 2020 to 2024].

Background: The mental health of children and adolescents is increasingly affected by global crises, but so far there are only limited longitudinal studies on this topic. This longitudinal, population-based study aimed to explore changes in mental health during global crises.

Methods: The study analyzed data from 2865 families with children and adolescents aged 7 to 22 years who participated in at least one wave of the COPSY (COvid-19 and PSYchological health) study from May 2020 (T1) to October 2024 (T7). On average, the families took part in 56.7% of the survey waves. Descriptive statistics and multivariate regression analyses were used to examine changes in mental health as well as the effects of crisis-related worries and digital media use.

Results: The mental health of children and adolescents was significantly impaired at the beginning of the pandemic, improved again in the following years, but remained at an impaired level in fall 2024 compared to pre-pandemic levels. At the same time, concerns about wars, economic crises, and the climate crisis have increased significantly. Risk factors such as low parental education and parental mental health problems were associated with poorer mental health, while personal, familial, and social resources had a protective effect. A high level of media consumption was documented, which was associated with stressful experiences.

Conclusion: Global crises pose significant challenges to the mental health of children and adolescents. Resource-oriented prevention and intervention efforts are urgently needed to support young people in coping with these challenges.