Table 1.

General information of research objects (n = 156, %).

Variables	Category	Frequency	Percentage (%)
Gender	Males	73	46.8
	Females	83	53.2
Age	<45 years old	39	25.0
	45<60 years old	75	48.1
	>60 years old	42	26.9
Religious belief	Yes	17	10.9
	No	139	89.1
Family residence	Village	95	60.9
	Cities and town	61	39.1
Marital status	Unmarried	13	8.3
	Married	123	78.9
	Divorced or widowed	20	12.8
Monthly household income (RMB)	<1,000	35	22.4
	1,000<3,000	50	32.1
	3,001<5,000	41	26.3
	>5,000	30	19.2
Educational level	Primary school or below	39	25.0
	Junior high school	40	25.6
	High school/technical secondary school	41	26.3
	universities and colleges	19	12.2
	Bachelor degree or above	17	10.9
Payment ways	Self-funded	33	21.2
	The new rural cooperative medical insurance	49	31.4
	Medical insurance for urban residents	62	39.7
	Other ways	12	7.7
Occupations	Worker	19	12.2
	Farmer	54	34.6
	Professional and technical personnel	18	11.5
	Cadre	6	3.9
	retiree	22	14.1
	Unemployed or other	37	23.7
Disease course (years)	<3	51	32.7
	3<5	54	34.6
	6<10	23	14.8
	>10	28	17.9
Operation time(s)	≤1	29	18.6
	2<3	104	66.7
	≥4	23	14.7
Postoperative catheter	Yes	145	92.9
	No	11	7.1
Complicated with disease	Yes	81	51.9
	No	75	48.1
Knowledge of the disease	Know about all	22	14.1
	Know partially	122	78.2
	Know nothing	12	7.7