Table 1.

Demographic characteristics for pediatric PD patients in the North American Pediatric Renal Trials and Collaborative Studies registry by prior transplant status

Patient Characteristics	Transplant Naive		Transplant Failure		Chi-Squared P Value
	N	%	N	%
All patients	2384	100	445	100
Age at PD initiation (yr)
2–5	387	16.2	39	8.8	<0.001
6–12	924	38.8	133	29.9
13–17	973	40.8	208	46.7
18+	100	4.2	65	14.6
Race
white	1159	48.6	254	57.1	<0.001
black	482	20.2	97	21.8
Hispanic	574	24.1	64	14.4
other	169	7.1	30	6.7
Sex
male	1261	52.9	236	53	0.96
female	1122	47.1	209	47
missing	1	0	0	0
Primary disease
obstructive uropathy	259	10.9	49	11	0.02
FSGS	392	16.4	84	18.9
renal dysplasia	272	11.4	76	17.1
reflux nephropathy	93	3.9	12	2.7
other	1106	46.4	197	44.3
missing	262	11	27	6.1
Era of dialysis initiation
1992–1994	552	23.2	147	33	<0.001
1995–1997	633	26.6	101	22.7
1998–2000	481	20.2	64	14.4
2001–2003	375	15.7	80	18
2004–2007	343	14.4	53	11.9
Immunosuppression
yes	217	9.1	217	48.8	<0.001
no/missing	2167	90.9	228	51.2

PD, peritoneal dialysis.