Table 2.

Characteristics of PH and non-PH patients starting renal replacement therapy in 1979–2009

CharacteristicPH PatientsNon-PH PatientsP Value
Number of patients1009147
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
 0–1.938 (38.0)1132 (12.4)
 2–6.915 (15.0)1526 (16.7)
 7–11.925 (25.0)2203 (24.1)
 ≥1221 (21.0)4261 (46.6)
 missing1 (1.0)25 (0.2)
Decade of entry, n (%)0.75
 1979–198913 (13.0)1369 (15.0)
 1990–199932 (32.0)3018 (33.0)
 2000–200954 (54.0)4736 (51.8)
 missing1 (1.0)24 (0.2)
Initial treatment, n (%)0.07
 hemodialysis55 (55.0)3691 (40.3)
 peritoneal dialysis31 (31.0)3567 (39.0)
 transplantation6 (6.0)1401 (15.3)
 missing/unknown9 (9.0)588 (6.4)
  • PH, primary hyperoxaluria; IQR, interquartile range.