KCNQ4 and Familial prostate cancer: Among the four CpGs passing a Bonferroni‐corrected threshold in MR analyses, cg06885782 in KCNQ4 was reported to be associated with risk for prostate cancer (beta = 1.2, pMR = 4.1 × 10−4) and negatively associated with longevity (beta = −1.9, pMR = 0.02).