Table 2.
Characteristics of PH and non-PH patients starting renal replacement therapy in 1979–2009
| Characteristic | PH Patients | Non-PH Patients | P Value |
|---|---|---|---|
| Number of patients | 100 | 9147 | |
| Male sex, n (%) | 61 (61.0) | 5263 (57.5) | 0.48 |
| Age (yr), median (IQR) | 5.3 (0.5–10.2) | 11.4 (5.8–15.1) | <0.001 |
| Age category (yr), n (%) | <0.001 | ||
| 0–1.9 | 38 (38.0) | 1132 (12.4) | |
| 2–6.9 | 15 (15.0) | 1526 (16.7) | |
| 7–11.9 | 25 (25.0) | 2203 (24.1) | |
| ≥12 | 21 (21.0) | 4261 (46.6) | |
| missing | 1 (1.0) | 25 (0.2) | |
| Decade of entry, n (%) | 0.75 | ||
| 1979–1989 | 13 (13.0) | 1369 (15.0) | |
| 1990–1999 | 32 (32.0) | 3018 (33.0) | |
| 2000–2009 | 54 (54.0) | 4736 (51.8) | |
| missing | 1 (1.0) | 24 (0.2) | |
| Initial treatment, n (%) | 0.07 | ||
| hemodialysis | 55 (55.0) | 3691 (40.3) | |
| peritoneal dialysis | 31 (31.0) | 3567 (39.0) | |
| transplantation | 6 (6.0) | 1401 (15.3) | |
| missing/unknown | 9 (9.0) | 588 (6.4) |
PH, primary hyperoxaluria; IQR, interquartile range.