. Author manuscript; available in PMC: 2017 Apr 1.

Published in final edited form as: J Pediatr. 2016 Jan 28;171:196–201.e1. doi: 10.1016/j.jpeds.2015.12.079

Table 1.

Baseline Demographic and Clinical Characteristics of ARPKD Subjects and Controls

Characteristic	ARPKD Subjects (n=22)	A/H/D Controls (n=44)	p-value	OU Controls (n=44)	p-value
Age (in years) at study entry^a	7.9 [4.8,10.1]	7.4 [6.1,9.6]	0.99	8.6 [4.9,10.2]	0.55
Age (in years) at diagnosis^a	0.1 [0.0,0.4]	0.0 [0.0,1.1]	0.51	0.0 [0.0,0.8]	0.75
Male sex^b	9 (41%)	22 (50%)	0.60	36 (82%)	0.002
African-American^b	1 (5%)	10 (23%)	0.08	12 (27%)	0.046
Hispanic ethnicity^b	8 (36%)	4 (9%)	0.02	7 (16%)	0.12
Premature birth (<36 weeks)^b	6 (27%)	7 (17%)	0.34	4 (9%)	0.08
Low birth weight (<2500g)	4 (18%)	15 (36%)	0.16	5 (12%)	0.47

Median [interquartile range]

Number (percent). Significant p values (p<0.05) are shown in bold.