NSUN4 and breast cancer: For example, one SD decrease of NSUN4 methylation by rs6682266 was associated with 9% lower risk of breast cancer (OR: 0.91, 95% CI: 0.87–0.96, PSMR = 1.50 × 10−5), and conversely, one SD increase of NSUN4 methylation by rs6681857 was associated with 7% higher risk of breast cancer (OR: 1.07, 95% CI: 1.04–1.10, PSMR = 5.81 × 10−6).