Table 1 Main characteristics of older adults in the training cohort and the test cohort
Characteristics | Training cohort (n = 978) | Test cohort (n = 244) |
|---|---|---|
Age, years | 71.8 ± 6.1 | 71.9 ± 6.3 |
Males, n (%) | 544 (55.62) | 129 (52.87) |
BSA, m2 | 1.7 (1.6–1.9) | 1.7 (1.5–1.8) |
BMI, kg/m2 | 24.9 (22.9−27.7) | 24.6 (22.2−27.5) |
Serum creatinine, µmol/L | 110.15 (80.0–165.0) | 116.3 (78.42–173.85) |
Diabetes, n (%) | 461 (47.14) | 121 (49.59) |
CKD, n (%) | 727 (74.33) | 187 (76.64) |
Causes of CKD, n (%) | Â | Â |
Chronic glomerulonephritis | 218 (30.0) | 59 (31.6) |
Diabetic nephropathy | 145 (19.9) | 46 (24.6) |
Hypertensive kidney damage | 72 (9.9) | 20 (10.7) |
Kidney tumors | 112 (15.4) | 19 (10.2) |
Unkown | 180 (24.7) | 42 (23.0) |
Measured GFR, ml/min/1.73 m2 | 49.25 (34.79–66.94) | 46.81 (32.28–65.60) |
≥ 90 ml/min/1.73 m2, n (%) | 47 (4.81) | 15 (6.15) |
60–89 ml/min/1.73 m2, n (%) | 276 (28.22) | 61 (25.0) |
30–59 ml/min/1.73 m2, n (%) | 468 (47.85) | 113 (46.31) |
15–29 ml/min/1.73 m2, n (%) | 144 (14.72) | 47 (19.26) |
< 15 ml/min/1.73 m2, n (%) | 43 (4.4) | 8 (3.28) |