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A robust framework for harmonising health measures across international cohorts: Evidence from the COVID-19 pandemic.

2025-09-12 epidemiology Title + abstract only
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Cross-national research on health trajectories requires harmonised measures that are valid and comparable. However, measurement scales often differ between cohorts in item content and cultural context. We present a structured framework to harmonise mental health measures, using depression and anxiety symptoms across two longitudinal cohorts that used different self-report measures with heterogeneous item codings: ELSA-UK and ELSA-Brasil. Data were collected before, during, and after the COVID-1...

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