Table 1. Demographic characteristics and comorbidities of patients with and without polycystic kidney disease (propensity score-matched cohort).

	Polycystic kidney disease
	Yes(N=6031)		No(N=23976)
	n	%	n	%	p-value
Age, year					0.99
20-49	2063	34.2	8199	34.2
50-64	1689	28.0	6718	28.0
≥ 65	2279	37.8	9059	37.8
Mean (SD)#	58.2	17.0	57.9	17.0	0.19
Gender					0.98
Female	2633	43.7	10471	43.7
Male	3398	56.3	13505	56.3
Comorbidity
CKD	1953	32.4	7688	32.1	0.64
ESRD	1862	30.9	7336	30.6	0.68
GB stone disease	438	7.26	1681	7.01	0.50
Hyperlipidemia	591	9.80	2295	9.57	0.59
Obesity	11	0.18	27	0.11	0.17
Diabetes	1110	18.4	4382	18.3	0.82
Alcoholism	66	1.09	233	0.97	0.39
Chronic HBV infection	213	3.53	790	3.29	0.36
Chronic HCV infection	202	3.35	754	3.14	0.99
NAFLD	170	2.82	643	2.68	0.56

Chi-square test; ^#: T-test.

HBV: Hepatitis B virus; HCV: Hepatitis C virus; NAFLD: Nonalcoholic fatty liver disease.