Table 1.

Patient characteristics according to assistance modality

CovariateFamily-Assisted PD (n=1056)Nurse-Assisted PD (n=4230)Self-PD (n=4515)
Age at PD initiation (yr)a73.6 (64.6–80.3)78.7 (72.3–83.7)56.05 (43.1–68.1)
CCIa 7 (9–6)8 (6–9) 4 (3–6)
Modified CCIa6 (4–7)5 (4–7)3 (2–5)
Men610 (57)2104 (50)2886 (64)
Diabetes487 (46)1767 (42)927 (21)
Nephropathy
 unknown121 (12)569 (14)475 (11)
 interstitial nephritis52 (5)206 (5)300 (7)
 GN83 (8)290 (7)1061 (24)
 diabetic310 (30)1118 (27)611 (14)
 PKD23 (2)79 (2)444 (10)
 miscellaneous42 (4)94 (2)223 (5)
 uropathy19 (2)55 (1)224 (5)
 vascular359 (35)1654 (40)931 (21)
 systemic disease17 (2)70 (2)151 (3)
 missing309595
Treatment before PD
 satellite HD0 (0)3 (0)18 (0)
 home HD0 (0)2 (0)2 (0)
 in-center HD214 (20)721 (17)788 (18)
 Not on dialysis827 (79)3485 (83)3493 (78)
 renal transplantation13 (1)9 (0)197 (4)
 missing21017
Center size (new patients per year)
 ≤10479 (45)1917 (45)2015 (45)
 10–20443 (42)1563 (37)1780 (39)
 >20134 (13)750 (18)720 (16)
Early peritonitis16 (2)54 (1)67 (1)
  • Unless otherwise indicated, values are expressed as the number (percentage) of patients. PD, peritoneal dialysis; CCI, Charlson comorbidity index; PKD, polycystic kidney disease; HD, hemodialysis.

  • a Median (interquartile range).