Abstract
A polygenic risk score (PRS) summarizes in one number an individual’s estimated genetic association with a specific trait or disease based on the common DNA variants included in the score. Disease PRSs have the potential to positively affect population health by improving disease risk prediction, thereby also potentially improving disease prevention, early intervention and treatment. However, given the potential psychological, behavioural and other harms, there are also concerns about integrating PRSs into clinical tools and healthcare systems. Here we assess five arguments against implementing PRSs for physical disease in clinical practice that revolve around psychological and behavioural considerations. For each argument, we consider a counterargument, the evidence and underlying theory, any gaps in the evidence base and possible future directions and research priorities. We conclude that, although there may be other barriers to implementation, there is currently little evidence of psychological or behavioural harms from integrating PRSs into practice.
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We are grateful to C. Lewis and J. Waller for feedback on an early draft of this paper.
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S.C.S. and M.I. jointly developed the overall concept for the manuscript, wrote the initial manuscript and revised it based on reviewer and editorial feedback.
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M.I. is a trustee of the Public Health Genomics Foundation and a member of the Scientific Advisory Board of Open Targets. M.I. has research collaborations with AstraZeneca, Nightingale Health and Pfizer that are unrelated to this work. S.C.S. declares no competing interests.
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Sanderson, S.C., Inouye, M. Psychological and behavioural considerations for integrating polygenic risk scores for disease into clinical practice. Nat Hum Behav 9, 1098–1106 (2025). https://doi.org/10.1038/s41562-025-02200-x
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DOI: https://doi.org/10.1038/s41562-025-02200-x
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