CYP24A1 and breast carcinoma: Conversely, CYP24A1 rs2209314 was associated with an almost threefold decreased risk of ER- breast cancer in EA women (OR = 0.38, 95% CI = 0.20 to 0.73) and there were no associations in AA women (OR = 1.34, 95% CI = 0.74 to 2.40).