The Oxford Cognitive Screen in culturally diverse populations: A comparative study of Suriname and Belgium

Abstract Objective: Post-stroke neurocognitive disorders are highly prevalent, yet screening tools that are fit for culturally diverse populations are scarce. This study evaluates the impact of cultural differences on the Oxford Cognitive Screen (OCS), a stroke-specific screening tool. Methods: To evaluate cultural differences, we compared two populations with varying degrees of cultural diversity and Western, Educated, Industrialized, Rich and Democratic (WEIRD) characteristics. We adapted the Dutch OCS for Suriname through a multi-stage process. Using Bayesian hierarchical regression analysis, we compared 264 Surinamese participants, assessed with the adapted Dutch OCS, with 247 Belgian participants, assessed with the Dutch OCS, while controlling for age and education. We further investigated whether the associations of age and education with performance were comparable between the two populations. Results: Our findings revealed minimal differences in OCS performance between the Belgian and Surinamese populations. Both populations showed similar age-related decline and education-related improvement across all subtests, except for Picture naming, where the age-related decline was more pronounced in the Belgian population. Conclusion: These findings suggest that with minimal adaptation, the OCS is a viable tool for screening post-stroke neurocognitive disorders in culturally diverse populations.