Table 1. Baseline Characteristics of the Study Participants

Total Sample (n=2176)Subsample With eGFRCG >90 mL/min/1.73 m2 (n=1777)Subsample With Ca <2.6 mmol/L and Pi <1.45 mmol/L (n=2155)
Data are n (%), means (SD) for normally distributed variables, and medians (interquartile ranges) for non-normally distributed variables (serum Pi, serum Ca, serum triglycerides).
eGFRCG indicates Cockcroft Gault estimated glomerular filtration rate.
Serum Ca, mmol/L2.36 (0.09)2.35 (0.11)2.35 (0.11)
Serum Pi, mmol/L0.9 (0.3)0.9 (0.2)0.9 (0.2)
Serum creatinine, mg/dL0.92 (0.13)0.89 (0.11)0.92 (0.13)
eGFRCG, mL/min/1.73m2108 (21)114 (18)108 (21)
Serum albumin, g/L46.0 (3.0)46.0 (3.0)46.0 (3.0)
Serum total cholesterol, mmol/L6.9 (1.3)6.9 (1.3)6.9 (1.3)
Serum triglycerides, mmol/L1.67 (0.93)1.70 (0.96)1.66 (0.93)
Body mass index, kg/m225.0 (3.2)25.5 (3.2)25.0 (3.2)
Diabetes mellitus96 (4.4)77 (4.3)96 (4.5)
Smoking1104 (50.7)908 (51.1)1093 (50.7)
Systolic blood pressure, mm Hg133 (18)134 (18)133 (18)
Diastolic blood pressure, mm Hg84 (11)84 (11)84 (11)
Antihypertensive treatment85 (3.9)70 (3.9)84 (3.9)