Table 1 Baseline characteristics of incident CKD patients with available data (N = 514)
| Â | Missing data (%) | N | % | Mean | STD | Median | Q1 | Q3 | Min | Max |
|---|---|---|---|---|---|---|---|---|---|---|
Age (year) | 0 | 514 | Â | 76.0 | 13.0 | 77.7 | 69.6 | 84.9 | 17.5 | 99.9 |
  < 70 |  | 134 | 26.1 |  | ||||||
 70–80 |  | 156 | 30.4 |  | ||||||
 80–85 |  | 96 | 18.7 |  | ||||||
  ≥ 85 |  | 128 | 24.9 |  | ||||||
Gender | 0 | Â | Â | Â | ||||||
 Men |  | 336 | 65.4 |  | ||||||
 Women |  | 178 | 34.6 |  | ||||||
BMI (kg/m2) | 36.9 | 324 | Â | 27.1 | 5.4 | 26.1 | 23.7 | 30.1 | 14.7 | 47.5 |
  ≤ 20 |  | 21 | 6.5 |  | ||||||
 ]20–25] |  | 97 | 29.9 |  | ||||||
 ]25–30] |  | 122 | 37.7 |  | ||||||
  > 30 |  | 84 | 25.9 |  | ||||||
SBP (mm Hg) | 36.4 | 327 | Â | 136.8 | 22.8 | 135 | 120 | 150 | 78 | 240 |
DBP (mm Hg) | 36.4 | 327 | Â | 73.3 | 12.6 | 70 | 66 | 80 | 38 | 120 |
Number of comorbidities | 1.3 | 507 | Â | 2.9 | 1.3 | 3 | 2 | 4 | 0 | 7 |
 0 |  | 2 | 0.4 |  | ||||||
 1 |  | 54 | 10.7 |  | ||||||
 2 |  | 144 | 28.4 |  | ||||||
 3 |  | 155 | 30.6 |  | ||||||
 4 |  | 152 | 30.0 |  | ||||||
Cardiovascular diseases | Â | 436 | 86.0 | Â | ||||||
Diabetes mellitus | Â | 173 | 34.1 | Â | ||||||
Ischemic cardiomyopathy | Â | 159 | 31.4 | Â | ||||||
Heart failure (NYHA III or IV) | Â | 117 | 23.1 | Â | ||||||
Hypertension | Â | 368 | 72.6 | Â | ||||||
Stroke | Â | 45 | 8.9 | Â | ||||||
Lower limb peripheral arterial disease | Â | 101 | 19.9 | Â | ||||||
Neoplasia | Â | 87 | 17.2 | Â | ||||||
Hemoglobin (g/dL) | 11.3 | 454 | Â | 12.1 | 2.1 | 12.1 | 10.6 | 13.5 | 5.4 | 18.4 |
Serum creatinine (mg/dL) | 0 | 514 | Â | 2.2 | 1.3 | 1.9 | 1.8 | 2.1 | 1.7 | 23.7 |
eGFR (mL/min/1.73Â m2) | 0 | 514 | Â | 32.0 | 8.6 | 32.4 | 27.3 | 38.9 | 1.7 | 52.8 |
  < 15 |  | 25 | 4.9 |  | ||||||
 15–29 |  | 168 | 32.7 |  | ||||||
 30–44 |  | 314 | 61.1 |  | ||||||
 45–59 |  | 7 | 1.4 |  | ||||||