Table 3:
Performance of optimal PGS in each ancestry
Ancestry | p-value cut-off | # SNPs | Cohort | PGS R2 (model R2) | p-valuea |
---|---|---|---|---|---|
European | 0.00035 | 341 | Tuning (n=1,000) | 0.014 (0.14) | 9.3×10−5 |
Validation (n=8,569) | 0.0098 (0.17) | 1.1×10−23 | |||
African | 0.01265 | 32,269 | Tuning (n=57) | 0.029 (0.49) | 0.11 |
Validation (n=1,042) | 0.002 (0.03) | 0.15 | |||
African | 1.0 | NAb | Full-Independent (n=1,099) | 0.003 (0.04) | 0.05 |
Abbreviations: SNPs, single nucleotide polymorphism; PGS, polygenic score
p-value for association between PGS and log[25(OH)D]
this PGS was created via mega-analysis of three cohorts; # SNPs varies by cohort