Table 1: Baseline characteristics in study subjects ().

Variables

Age (yrs) (mean, SD)56.499.95
Sex
 Female3371.74
 Male1328.26
HD vintage (yrs) (mean, SD)6.144.31
Vitamine D use816.33
Calcium salt use816.33
Comorbidity
 Diabetes mellitus613.04
 Hypertension4086.96
 Coronary24.35
SBP (mean, SD)139.1026.46
DBP (mean, SD)78.1014.04
Lab parameters (mean, SD)
 Hb (g/dL)11.131.73
 Hct (%)33.975.18
 Albumin (g/dL)4.824.59
 BUN41.3920.99
 Cr9.2110.58
 Ca (mg/dL)9.821.33
 P (mg/dL)5.511.91
 CaxP (mg2/dL2)54.4020.52
 ALP (U/L)229.94197.18
 Bone-ALP (μg/L)65.0039.43
 Al (μg/dL)2.261.14
 Ferritin (ng/mL)363.84234.53
 iPTH (pg/ml)1391.22746.68
 25(OH)D3 (ng/mL)14.547.48

HD, hemodialysis; SBP, systolic blood pressure; DBP, diastolic blood pressure; Hb, hemoglobin; Hct, hematocrit; BUN, blood urea nitrogen; Cr, creatinine; Ca, calcium; P, phosphate; CaxP, calcium-phosphate product; ALP, alkaline phosphatase, Al, aluminum; iPTH, intact parathyroid hormone.
Reference range: Hb, 12.0–17.5 g/dL; Hct, 36–53%; Albumin, 3.5–5.0 g/dL; BUN, 6.0–21 mg/dL; Cr, 0.44–1.27 mg/dL; Ca, 7.9–9.9 mg/dL; P, 2.4–4.7 mg/dL; ALP, 40–140 U/L; Bone-ALP, 5.5–22.9 μg/L; Al, <2.0 μg/dL; Ferritin, 10–322 ng/mL; iPTH, 14–72 pg/ml; 25(OH)D3, 9.7–41.7 ng/mL.