TNFRSF11B and hydrops fetalis: After adjusting for clinical covariates, OPG levels were still related to primary outcome [HR: 1.75; 95% CI: (1.19,2.56); P < 0.001], all-cause death [HR: 1.69; 95% CI: (1.23,2.31); P < 0.001], cardiovascular death [HR: 1.62; 95% CI: (1.02,2.59); P = 0.04], and HF hospitalization [HR: 1.95; 95% CI: (1.06,3.56); P = 0.03].