Table 1. Baseline characteristics of study subjects.
| Variable | Total (N = 1,312) | Males (N = 809) | Females (N = 503) | P |
|---|---|---|---|---|
| Age (yr) | 61.8 ± 13.4 | 61.2 ± 13.0 | 62.7 ± 14.1 | 0.051 |
| Height (cm) | 163.3 ± 8.4 | 167.7 ± 5.8 | 155.4 ± 6.2 | < 0.001 |
| Weight (kg) | 64.9 ± 10.2 | 68.7 ± 9.2 | 58.0 ± 8.2 | < 0.001 |
| Body mass index (kg/m2) | 24.4 ± 2.6 | 24.5 ± 2.5 | 24.2 ± 2.9 | 0.081 |
| Creatinine (mg/dL) | 1.588 ± 1.431 | 1.743 ± 1.514 | 1.339 ± 1.246 | < 0.001 |
| mGFR (mL·min-1·1.73 m-2) | 63.4 ± 36.4 | 64.4 ± 36.2 | 61.8 ± 36.8 | 0.210 |
| mGFR, N (%) | 0.523 | |||
| ≥ 90 | 326 (24.8) | 200 (24.7) | 126 (25.0) | |
| 60–89 | 348 (26.5) | 224 (27.7) | 124 (24.7) | |
| 45–59 | 195 (14.9) | 126 (15.6) | 69 (13.7) | |
| 30–44 | 168 (12.8) | 100 (12.4) | 68 (13.5) | |
| 15–29 | 133 (10.1) | 74 (9.1) | 59 (11.7) | |
| < 15 | 142 (10.8) | 85 (10.5) | 57 (11.3) | |
| eGFR (mL·min-1·1.73 m-2) | 0.279 | |||
| CKD-EPIcr | 62.8 ± 30.5 | 62.0 ± 29.8 | 63.9 ± 31.5 | |
| Asian CKD-EPI | 66.1 ± 32.1 | 65.5 ± 31.5 | 67.0 ± 33.0 | 0.425 |
| Revised LM | 56.8 ± 26.4 | 55.9 ± 25.4 | 58.4 ± 27.9 | 0.104 |
| FAS | 60.9 ± 29.1 | 60.6 ± 28.2 | 61.2 ± 30.5 | 0.702 |
| Korean FAS | 63.2 ± 30.2 | 64.4 ± 30.0 | 61.2 ± 30.5 | 0.066 |
Continuous variables are normally distributed and expressed as mean±standard deviation.
Abbreviations: CKD-EPIcr, creatinine-based Chronic Kidney Disease Epidemiology Collaboration; eGFR, estimated glomerular filtration rate; FAS, full age spectrum; mGFR, measured glomerular filtration rate; Revised LM, revised Lund–Malmö.