Table 1.
Demographics and characteristics.
| Parameter* | (mean ± SD) | Body mass index (kg/m2) | P value | |||
|---|---|---|---|---|---|---|
| All patients (n = 2877) |
<20 (n = 175) |
20–25 (n = 1071) |
25–30 (n = 1138) |
≥30 (n = 493) |
||
| Age (years) | 57.3 ± 9.7 | 60.3 | 57.9 | 56.6 | 56.4 | <0.001 |
| Male (n, %) | 1501, 52.2 | 57.7 | 59.9 | 52.5 | 32.9 | <0.001 |
| Height (cm) | 162 ± 9 | 163 | 164 | 162 | 160 | <0.001 |
| Weight (kg) | 69.2 ± 13.6 | 48.9 | 61.5 | 72.1 | 86.2 | <0.001 |
| Body mass index (kg/m2) | 26.2 ± 4.7 | 18.4 | 22.9 | 27.2 | 33.7 | — |
| Serum creatinine (mg/dL) | 0.87 ± 0.29 | 0.86 | 0.88 | 0.87 | 0.81 | <0.001 |
| Serum cystatin C (mg/L) | 0.98 ± 0.27 | 0.98 | 0.97 | 0.97 | 1.03 | <0.001 |
| Urine albumin to creatinine ratio (mg/g) | 41 ± 139 | 34 | 45 | 39 | 42 | 0.6 |
| Systolic blood pressure (mm Hg) | 135 ± 19.8 | 132 | 134 | 136 | 137 | <0.001 |
| Diastolic blood pressure (mm Hg) | 78 ± 10.3 | 75 | 78 | 79 | 77 | <0.001 |
| Hypertension (n, %) | 1597, 55.5 | 45.1 | 50.6 | 57.4 | 65.5 | <0.001 |
| Diabetes (n, %) | 948, 33.0 | 21.1 | 31.2 | 34.0 | 38.5 | <0.001 |
*All parameters reported as mean ± SD, or frequency, %. Conversion factor for unit: serum creatinine in mg/dL to 𝜇mol/L, ×88.4.