Table 3.

R² and p-values from likelihood ratio test for prediction models using GWAS identified SNPs and PCs in 10-fold cross-validation

		Hair color		Tanning ability		Basal cell carcinomaa
Model		R2	P-valueb	R2	P-valueb	R2	P-valueb
1	GRSunadj	0.2236	<10−16	0.1311	<10−16	0.0266	<10−16
2	GRSadj	0.2227	<10−16	0.1324	<10−16	0.0234	<10−16
3	GRSadj + PC1 + … + PC5	0.2378	<10−16	0.1384	1.93 × 10−13	0.0372	6.82 × 10−13

^aR² on liability scale

^bP-values are from likelihood ratio tests comparing model 1 and 2 to the null model, and model 3 to model 2.