Table 1. Baseline characteristics of incident long-term dialysis (>90 days) adult patients with polycystic kidney disease (>=20 years) during 1999–2010.

	PD(n = 125)	HD(n = 1292)	P value
Age, years, mean (std)	53.6(14.9)	60.3(13.9)	<0.001
Male, n (%)	62(50.4)	760(58.8)	0.068
Comorbidity index, mean (std)	2.79(1.14)	3.4(1.72)	<0.001
Late referral to a nephrologist, n (%)	17(13.6)	234(18.2)	0.200
Economic status
Low	41(32.8)	442(34.2)	0.364
Intermediate	76(60.8)	801(62.0)
High	8(6.4)	49(3.8)
Comorbidity
Diabetes	15(12.0)	233(18.0)	0.09
Hypertension	87(69.6)	1043(80.7)	0.003
Coronary artery disease	18(14.4)	275(21.3)	0.070
Cerebral vascular disease	4(3.2)	121(9.4)	0.019
Heart failure	12(9.6)	227(17.6)	0.023
Arrhythmia	8(6.4)	116(9.0)	0.330
Valvular heart disease	4(3.2)	82(6.4)	0.159
Peripheral vascular disease	0(0)	40(3.1)	0.044
COPD	4(3.2)	134(10.4)	0.007
Chronic liver disease	19(15.2)	185(14.3)	0.789
Gout	42(33.6)	376(29.1)	0.292
Dyslipidemia	19(15.2)	151(11.7)	0.248
Cancer	4(3.2)	93(7.2)	0.097