Multinational Cohort Validation

The study involved 56 co-investigators from academic institutions, research centers, and health systems across 11 countries. The study involved 56 co-investigators from academic institutions, research centres, and health systems across 11 countries. The validation study enrolled 6.4 million individuals. The validation study included 6.4 million individuals. The validation study used a cohort of 6.4 million individuals from diverse geographic regions and healthcare settings. The study used a cohort of 6.4 million individuals from diverse regions and healthcare settings. The article does not provide subgroup analyses by geography or population characteristics. Geographic diversity was central to evaluating how risk prediction tools perform across different populations and healthcare contexts. The validation study included individuals from diverse geographic regions and healthcare settings. Geographic diversity was used to assess performance across different populations and healthcare contexts. The data harmonization effort was considered evidence of the study's methodological rigor in testing real-world applicability. Harmonizing data across multiple cohort studies with different da…