TNFRSF11B and coronary artery calcification: In addition, El Baz et al. (37) reported that circulating OPG was significantly higher among hemodialysis patients with VC and was correlated positively with abdominal aortic and coronary artery calcification scores, and Avila et al. (56) concluded that OPG was the strongest risk factor associated with new development and rapid progression of arterial calcification in incident PD patients.