PHRF1 and systemic lupus erythematosus: The three SNPs were associated with SLE in our study, with effect sizes that are similar to those reported (OR = 0.81 versus 0.82 for the 1q25.1 SNP, 0.84 versus 0.78 for the KIAA1542 SNP, and 1.19 versus 1.25 for the PXK SNP).