In the overall BC population and the ER+ subgroup, FGF20 correlates with a lower risk of developing the disease, with ORs of 0.996 (95% CI: 0.993–1.000, P = .027) and 0.959 (95% CI: 0.920–0.999, P = .046), respectively. The gene discussed is FGF20; the disease is breast cancer.