The impact of social unrest and pandemic on mental health of young people in Hong Kong: The transdiagnostic role of event-based rumination.

These findings suggest that diverse types of stressful events during population-level crises could add to personal stressors to affect mental health outcomes in young people. Among other protective and risk factors, event-based rumination presented as a prominent transdiagnostic mediator for different symptom dimensions which may be a potentially important target for early risk detection and intervention.