Table 1 Baseline characteristics of men according to serum 25(OH)D level
Quartile (n) (ng/mL) | Quartile 1 (n = 245) (4.20–14.19) | Quartile 2 (n = 245) (14.20–18.99) | Quartile 3 (n = 249) (19.00–24.19) | Quartile 4 (n = 248) (24.20–51.90) | P value |
|---|---|---|---|---|---|
25(OH)D, ng/mL | 10.90 ± 2.28 | 16.53 ± 1.39 | 21.41 ± 1.50 | 29.67 ± 5.34 | < 0.001 |
Age, yr | 73.01 ± 4.87 | 72.38 ± 4.14 | 72.59 ± 4.47 | 73.27 ± 4.87 | 0.132 |
BMI, kg/m2 | 23.99 ± 2.63 | 24.19 ± 2.61 | 23.65 ± 2.67 | 23.60 ± 2.90† | 0.053 |
Waist, cm | 87.49 ± 8.13 | 86.68 ± 8.44 | 86.43 ± 8.78 | 83.48 ± 9.33*†‡ | < 0.001 |
SBP, mmHg | 125.89 ± 14.50 | 128.51 ± 14.24 | 129.70 ± 14.41 | 128.86 ± 13.88 | 0.370 |
DBP, mmHg | 74.10 ± 8.91 | 73.68 ± 9.28 | 75.23 ± 8.35 | 73.02 ± 7.90 | 0.420 |
Current smoking | 42 (17.1) | 53 (21.6) | 36 (14.5) | 53 (21.4) | 0.117 |
Current drinking | 205 (66.6) | 194 (64.2) | 138 (58) | 72 (51.8) | 0.011 |
Exercise | 151 (61.4) | 164 (66.9) | 164 (65.9) | 132 (53.2) | 0.007 |
eGFR | 77.5 ± 15.11 | 79.8 ± 14.03 | 81.06 ± 13.19* | 80.13 ± 13.44 | 0.036 |
PTH | 39.68 ± 14.13 | 38.07 ± 17.25 | 35.80 ± 12.07 | 33.83 ± 11.62*† | < 0.001 |
Glucose, mg/dL | 101.59 ± 23.61 | 100.47 ± 20.17 | 99.91 ± 19.90 | 97.50 ± 19.93 | 0.171 |
Insulin, IU/L | 7.53 ± 8.31 | 7.57 ± 12.22 | 6.12 ± 4.26 | 5.18 ± 3.26*† | 0.001 |
HOMA-IR | 1.93 ± 2.24 | 1.86 ± 2.42 | 1.55 ± 1.24 | 1.29 ± 0.99*† | < 0.001 |
Total cholesterol, mg/dL | 174.51 ± 32.91 | 172.92 ± 33.72 | 173.93 ± 33.09 | 163.70 ± 29.95*†‡ | < 0.001 |
Triglyceride, mg/dL | 138.69 ± 78.55 | 128.43 ± 71.30 | 125.45 ± 61.22 | 110.31 ± 46.04*† | < 0.001 |
HDL cholesterol, mg/dL | 45.99 ± 12.13 | 47.89 ± 12.56 | 46.98 ± 10.45 | 48.15 ± 11.26 | 0.157 |
Number of MetS components | 2.22 ± 1.30 | 2.16 ± 1.23 | 2.02 ± 1.25 | 1.73 ± 1.18*† | < 0.001 |