Table 1.

Characteristics of the study participants

All (n = 72)Tertile of VBDP
VBD (77.6 to 162 HU) (n = 24)VBD (168.5 to 210.1 HU) (n = 24)VBD (212.2 to 292.8 HU) (n = 24)
Age (years)52 ± 11.755.7 ± 10.854.9 ± 8.945.9 ± 12.90.005
Male (%)7062.579.258.30.27
CKD etiology (%)
    hypertension4037.52529
    diabetes302554.220.8
    others3037.520.850.2
Diabetes (%)4241.741.741.71.00
BMI (kg/m2)25.3 ± 4.526.4 ± 4.527 ± 5.225.7 ± 3.80.66
Creatinine clearance (ml/min per 1.73 m2)40.4 ± 18.238.4 ± 1840.7 ± 1742.2 ± 20.20.78
Proteinuria (g/24 h)0.22 (0 to 1.7)0.31 (0 to 1.03)0.14 (0 to 1.22)0.17 (0 to 1.18)0.85
Hemoglobin (g/dl)13.1 ± 2.112.8 ± 1.913.1 ± 2.513.5 ± 1.80.51
Glucose (mg/dl)100 (92 to 153.7)107 (96 to 164.7)102.5 (90.5 to 178.5)99.5 (84.5 to 133.5)0.68
Total cholesterol (mg/dl)203 ± 44204 ± 42207 ± 44199 ± 480.82
HDL (mg/dl)49 ± 11.751 ± 12.850 ± 12.547.6 ± 9.70.58
LDL (mg/dl)111 (93 to 134)106.5 (81 to 135.5)122 (96 to 135)111 (92 to 133.7)0.70
Triglycerides (mg/dl)145 (101 to 202)161.5 (98 to 243)139.5 (110.7 to 230)124 (94 to 176.7)0.51
CRP (mg/dl)0.41 (0.13 to 0.83)0.33 (0.13 to 0.54)0.46 (0.18 to 1.73)0.43 (0.1 to 0.69)0.79
Bicarbonate (mEq/L)24 (21 to 26)24 (21.8 to 26)23.9 (22.4 to 27)24 (21.5 to 26)0.90
Ionized calcium (mmol/L)1.30 ± 0.591.3 ± 0.051.31 ± 0.601.31 ± 0.660.70
Phosphorus (mg/dl)3.7 ± 0.663.65 ± 0.723.7 ± 0.563.7 ± 0.660.92
Alkaline phosphatase (U/L)118.5 (75 to 179.7)116 (95 to 171)120 (71 to 168.7)121.5 (67.5 to 211.7)0.85
iPTH (pg/ml)103 (26 to 1028)111.5 (75 to 224.5)99.5 (65 to 132)97.5 (49.5 to 174.7)1.00
25(OH)D (ng/dl)a33.6 ± 1.6633.6 ± 830.6 ± 14.836.7 ± 14.90.32
Calcium score (AU)10.5 (0 to 120)85.7 (2.8 to 517.7)3.7 (0 to 78.1)0.55 (0 to 31.8)0.03
  • Results are presented as mean ± SD, median and interquartile range, or proportions. CRP, C-reactive protein; CKD, chronic kidney disease; HU, Hounsfield unit; VBD, vertebral bone density; BMI, body mass index; iPTH, intact parathyroid hormone; 25(OH)D, 25-hydroxyvitamin D; AU, Agatston unit.

  • a n = 63.