Table 1 Background characteristics of the patients
Number of patients | 306,925 | |
Sex (male/female) | 194,965/111,960 | |
Age (mean ± SD) | 67.21 ± 12.51 | |
Vintage (years, number of patients, %) | ||
<2 | 68,475 | (22.3) |
2–4 | 76,589 | (25.0) |
5–9 | 77,197 | (25.2) |
10–14 | 39,490 | (12.9) |
15–19 | 20,874 | (6.8) |
20–24 | 11,421 | (3.7) |
25–29 | 6611 | (2.2) |
30+ | 6155 | (2.0) |
Primary diagnoses (numbers, %) | ||
Diabetes | 115,484 | (37.6) |
Glomerulonephritis | 99,492 | (32.4) |
Nephrosclerosis | 26,569 | (8.7) |
Polycystic kidney | 10,683 | (3.5) |
Others or unknown | 54,697 | (17.8) |