Group

Control group (n = 50)

Observation group (n = 50)

P value

Gender (male/female)

23/27

25/25

0.837

Age (years)

60.7 ± 7.3

61.3 ± 6.7

0.928

Education level

Primary School

5

7

00.734

Middle School

25

24

University

20

19

Disease stages

I

6

4

0.655

II

27

28

III

17

18

Expenses

Self-funded

2

4

0.711

New rural cooperative medical system (NCMS)

14

10

Medical insurance

34

36