Table 2. Characteristics of the patients in the different mGFR categories.
| Characteristic | Whole Sample | mGFR Category | ||
|---|---|---|---|---|
| <60 ml/min/1.73 m2 | 60–89 ml/min/1.73 m2 | ≥90 ml/min/1.73 m2 | ||
| Number of participants | 10,610 (100.0%) | 3,987 (37.6%) | 3,469 (32.7%) | 3,154 (29.7%) |
| Age of adults, years | 53.4 [41.2; 62.7] | 58.3 [47.8; 67.7] | 51.9 [38.3; 60.7] | 42.9 [31.9; 52.2] |
| Age of children and adolescents, years | 11.0 [7.4; 14.8] | 13.1 [8.6; 15.2] | 11.4 [8.2; 15.1] | 10.5 [7.1; 14.6] |
| Age class | ||||
| 2–12 y | 750 (7.0%) | 58 (1.4%) | 151 (4.4%) | 541 (17.1%) |
| 13–17 y | 430 (4.0%) | 61 (1.5%) | 113 (3.2%) | 256 (8.1%) |
| 18–40 y | 2,326 (22.0%) | 523 (13.1%) | 731 (21.1%) | 1,072 (34.0%) |
| 41–64 y | 5,246 (49.5%) | 2,067 (52.0%) | 1,966 (56.7%) | 1,213 (38.5%) |
| ≥65 y | 1,858 (17.5%) | 1,278 (32.0%) | 508 (14.6%) | 72 (2.3%) |
| Females | 4,944 (46.6%) | 1,753 (44.0%) | 1,681 (48.4%) | 1,510 (47.8%) |
| Kidney transplanted | 1,550 (14.6%) | 958 (24.0%) | 508 (14.6%) | 84 (2.7%) |
| Candidates for kidney donation | 193 (1.8%) | 7 (0.2%) | 67 (1.9%) | 119 (3.8%) |
| Weight of adults, kg | 68.0 [57.5; 79.50] | 69.0 [59.0; 80.5] | 66.0 [56.0; 78.0] | 67.0 [57.0; 79.0] |
| Females | 60.0 [52.0; 70.0] | 61.0 [53.0; 72.0] | 59.0 [51.0; 68] | 59.0 [52.0; 69.0] |
| Males | 74.0 [65.0; 85.0] | 74.0 [65.0; 85.0] | 74.0 [64.5; 84.0] | 74.0 [65.0; 85.0] |
| Height of adults, cm | 166.0 [159.0; 173.0] | 166.0 [158.0; 173.0] | 166.0 [159.0; 173.0] | 167.0 [160.5; 174.0] |
| Females | 160.0 [155.0; 164.5] | 160.0 [155.5; 165.0] | 160.0 [155.5; 165.0] | 161.0 [157.0; 165.5] |
| Males | 172.0 [167.0; 177.0] | 171.0 [166.0; 176.0] | 172.0 [167.0; 177.0] | 173.0 [168.0; 178.0] |
| BMI z-score of children and adolescents | −0.2414 [−0.7457; 0.5601] | −0.3328 [−0.7197; 0.6329] | −0.2883 [−0.7595; 0.5400] | −0.2155 [−0.7456; 0.5396] |
| Body surface area, m 2 | 1.72 [1.55; 1.90] | 1.77 [1.62; 1.93] | 1.74 [1.59; 1.90] | 1.76 [1.61; 1.93] |
| BMI of adults, n | 9,430 | 3,868 | 3,205 | 2,357 |
| Median [IQR] | 24.3 [21.3; 27.9] | 25.0 [21.9; 28.7] | 23.9 [21.1; 27.2] | 23.8 [21.0; 27.2] |
| <18.5 kg/m2 | 606 (6.4%) | 228 (5.8%) | 203 (6.3%) | 175 (7.5%) |
| ≥35.0 kg/m2 | 441 (4.7%) | 251 (6.4%) | 106 (3.3%) | 84 (3.6%) |
| PCr, μmol/l * | 87 [66; 118] | 128 [103; 142] | 82 [69; 98] | 62 [51; 73] |
| mGFR, ml/min/1.73 m 2 | 70 [48; 94] | 42 [31; 52] | 74 [66; 81] | 106 [97; 117] |
| Albuminuria ** , mg/mmol | 2.21 [0.76; 12.81] | 6.92 [1.69; 42.12] | 1.47 [0.63; 6.16] | 1.19 [0.61; 3.75] |
| Albuminuria ** category | ||||
| <3 mg/mmol (<30 mg/g) | 5,861 (55.2%) | 1,380 (34.6%) | 2,225 (64.1%) | 2,255 (71.5%) |
| 3–30 mg/mmol (30–300 mg/g) | 2,957 (27.9%) | 1,448 (36.3%) | 856 (24.7%) | 653 (20.7%) |
| >30 mg/mmol (300 mg/g) | 1,793 (16.9%) | 1,159 (29.1%) | 388 (11.2%) | 246 (7.8%) |
Data are given as n (percent) or median [IQR]. Adults are individuals aged ≥18 y; children and adolescents are individuals aged 2–17 y.
*To convert PCr values to mg/dl, divide by 88.4.
**Ratio of urine albumin to urine creatinine.