Table 2 Characteristics of the study population, N = 1927
Characteristic | GFR category G1, G2 (60–89; ≥ 90 ml/min) | GFR category G3a (45–59 ml/min) | GFR category G3b (30–44 ml/min) | GFR category G4 (15–29 ml/min) | GFR category G5 (< 15 ml/min) |
|---|---|---|---|---|---|
n = 1737 (90.1%) | n= 137 (7.1%) | n = 42 (2.2%) | n = 9 (0.5%) | n = 2 (0.1%) | |
Female n (%) | 930 (53.5) | 76 (55.5) | 20 (47.6) | 3 (33.3) | 1 (50) |
Age, mean (± SD) (years) | 56.7 (12.9) | 73 (6.7) | 77.5 (8.2) | 80 (8.7) | 65 (14.1) |
Range (years) | 31–89 | 56–93 | 57–90 | 66–89 | 55–75 |
Hypertension > 150 and/or > 90 mmHg, n (%) | 401 (23.1) | 49 (35.8) | 14 (33.3) | 3 (33.3) | 1 (50) |
Diabetes (self-reported), n (%) | 194 (11.2) | 37 (27) | 16 (38.1) | 6 (66.7) | 1 (50) |
Albuminuria ≥ 300 mg/g or ≥ 30 mg/mmol, n (%) | 25 (1.4) | 6 (4.4) | 7 (16.7) | 2 (22.2) | 1 (50) |
Anaemia, n (%) | 104 (6) | 21 (15.3) | 15 (35.7) | 3 (33.3) | 1 (50) |
Abnormalities of serum potassium, n (%) | 84 (4.8) | 15 (11) | 9 (21.4) | 1 (11.1) | 1 (50) |
Hypocalcaemia, n (%) | 71 (4) | 3 (2.2) | 4 (9.5) | 0 (0) | 0 (0) |
Morphologic kidney changes, n (%) | 270 (15.5) | 49 (35.7) | 16 (38.1) | 2 (22.2) | 1 (50) |
Kidney stones, n (%) | 100 (5.8) | 16 (11.7) | 1 (2.4) | 0 (0) | 0 (0) |
Inherited kidney disease, n (%) | 120 (6.9) | 24 (17.5) | 6 (14.3) | 0 (0) | 0 (0) |
Haematuria, n (%) | 97 (5.6) | 10 (7.3) | 3 (7.1) | 2 (22.2) | 0 (0) |