ArticleSocial psychiatry and psychiatric epidemiology2026
Psychosocial stress from pre- to post-pandemic times: latent class mixed model analysis using data from a German cohort.
Article in Social psychiatry and psychiatric epidemiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeThe COVID-19 pandemic and containment measures disrupted daily life and worsened mental health. Stress, a key driver of mental disorders, likely intensified during this period. However, longitudinal studies tracking stress trajectories in the general population remain limited. This study aims to identify psychosocial stress trajectories from the pre- to post-pandemic period and examine associated characteristics in a population-based sample from a German city.
methods966 participants from the German National Cohort study-centre in Halle (240,000 inhabitants in Eastern Germany) were included. Those participated in a six-monthly intensified assessment and completed at least four questionnaires between 2019 and 2024 containing the PHQ-Stress module. First, latent class mixed models analysis identified heterogeneous stress trajectories. Second, associations between the most likely class membership and covariates were tested with multinomial and binomial logistic regressions.
resultsWe identified four psychosocial stress trajectory classes. Most participants followed a resilient trajectory (82%), while others showed chronic (4%), recovered (5%), or delayed (9%) trajectories. Membership in the resilient trajectory was associated with lower pre-pandemic psychological vulnerability, higher life satisfaction, greater agreeableness, and older age.
conclusionResilience predominated, while smaller subgroups showed less adaptive trajectories, with prior stress levels shaping long-term patterns. These findings demonstrate heterogeneity in stress responses and support the applicability of resilience frameworks such as Bonanno's.
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