Restricted accessResearch articleFirst published online 2026-3
Examining Differences in the Predictive Capacity of Educational Polygenic Scores on Physical Limitations Among Older Adults With European or African Ancestry
This research examined whether educational polygenic scores were associated with physical limitations among older adults with European or African ancestry. In the European ancestry sample, we found that education polygenic scores were significantly associated with physical limitations, net of age, sex, and current socioeconomic status. In the African ancestry sample, education polygenic scores were not associated with physical limitations in any of the models. Observed educational attainment was a robust predictor of physical limitations in both samples. This research demonstrates the inequalities in the predictive capacity of educational polygenic scores for physical health. We hypothesize that this disparity is a result of structural barriers to educational attainment by race, selection bias, and/or racial inequities in data collection. All of these explanations stem from structural racism and highlight the limited usefulness of polygenic scores for clinical decision-making.
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