Thirty-eight SNPs with the smallest p-values of the 528,173 tested for association of hair color in the initial GWAS of in 2,287 women of European ancestry

The p-values are based on primary association test (including women with red hair) adjusted for top four principal components of genetic variance.The regression parameter beta refers to the mean change in pigmentation scoring (or change in log odds of red hair for red hair analyses) per copy of the SNP minor allele.