CST3 and diabetes mellitus: Patients with HHcywere of older age; had a longer course; a higher prevalence of diabetes mellitus; were current smokers; had lower hemoglobin, proteinuria, cholesterol, LDL-C, HDL-C and urinary sodium excretion; and had higher clinic systolic blood pressure (clinic-SBP), serum albumin, iPTH, calcium×phosphate, uric acid, serum cystatin C, blood urea nitrogen and serum creatinine compared with subjects with normohomocysteinemia (p < 0.05) (Table 1).