期刊
NATURE GENETICS
卷 54, 期 4, 页码 450-+出版社
NATURE PORTFOLIO
DOI: 10.1038/s41588-022-01036-9
关键词
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资金
- National Institutes of Health (NIH) [U01 HG009379, U01 HG012009, R37 MH107649, R01 MH101244, R01 HG006399]
- Nakajima Foundation Fellowship
- Masason Foundation
- NWO Veni grant [91619152]
- National Institute of Mental Health [K99/R00MH117229]
- National Human Genome Research Institute [1K08HG010155, 1U01HG011719]
- IBM Research
- JSPS KAKENHI [19H01021, 20K21834]
- AMED [JP21km0405211, JP21ek0109413, JP21ek0410075, JP21gm4010006, P21km0405217]
- JST Moonshot RD [JPMJMS2021, JPMJMS2024]
- Grants-in-Aid for Scientific Research [20K21834, 19H01021] Funding Source: KAKEN
PolyPred and PolyPred(+) methods greatly improve cross-population polygenic prediction accuracy, particularly when applied to diseases and complex traits in UK Biobank populations. This is crucial for reducing health disparities in non-European populations.
PolyPred and PolyPred(+) methods that leverage fine-mapping and non-European training data significantly improve cross-population polygenic prediction accuracy when applied to diseases and complex traits in UK Biobank populations. Polygenic risk scores suffer reduced accuracy in non-European populations, exacerbating health disparities. We propose PolyPred, a method that improves cross-population polygenic risk scores by combining two predictors: a new predictor that leverages functionally informed fine-mapping to estimate causal effects (instead of tagging effects), addressing linkage disequilibrium differences, and BOLT-LMM, a published predictor. When a large training sample is available in the non-European target population, we propose PolyPred(+), which further incorporates the non-European training data. We applied PolyPred to 49 diseases/traits in four UK Biobank populations using UK Biobank British training data, and observed relative improvements versus BOLT-LMM ranging from +7% in south Asians to +32% in Africans, consistent with simulations. We applied PolyPred(+) to 23 diseases/traits in UK Biobank east Asians using both UK Biobank British and Biobank Japan training data, and observed improvements of +24% versus BOLT-LMM and +12% versus PolyPred. Summary statistics-based analogs of PolyPred and PolyPred(+) attained similar improvements.
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