Table 2 Baseline data comparison results between the intervention group and the control group

Gender

Male

16

55.17

14

46.67

0.427 ^a

0.514

Female

13

44.83

16

53.33

Age

60 ~ 69

19

65.52

26

86.67

3.644 ^a

0.056

≥70

10

34.48

4

13.33

Marital status

Married

28

96.55

30

100

1.052 ^a

0.492

No spouse

1

3.45

0

0

Children number

0 ~ 1

11

37.93

13

43.33

0.178 ^a

0.792

≥2

18

62.07

17

56.67

Education

Illiteracy

7

24.14

6

20.00

−0.109^b

0.913

Primary school

0

0

1

3.33

Junior high school

10

34.48

7

23.33

High school or secondary school

4

13.79

10

33.33

College

3

10.34

3

10.00

Undergraduate and above

5

17.24

3

10.00

Suffering from chronic diseases

Yes

13

44.83

16

53.33

0.427 ^a

0.606

No

16

55.17

14

46.67

Living with children

Yes

17

58.62

20

66.67

0.408 ^a

0.596

No

12

41.38

10

33.33

Primary caregiver

Self-care

19

65.52

21

70.00

0.136 ^a

0.785

No self-care

10

34.48

9

30.00

Public officials

Yes

4

13.79

13

43.33

5.519 ^c

0.009

No

25

86.20

17

56.67

Monthly income

<1000

6

20.69

2

6.67

−0.008^b

0.994

1000 ~ 1999

2

6.90

5

16.67

2000 ~ 3999

10

34.48

14

46.67

≥4000

11

37.93

9

30.00

Self-care ability

Fully self-care

28

96.55

30

100

1.052 ^a

0.492

Not fully self-sufficient

1

3.45

0

0

Smoking frequency

Never

26

89.65

28

93.33

−0.518^b

0.604

1-2 days a week

1

3.45

1

3.33

3-4 days a week

0

0

0

0

Every day

2

6.90

1

3.33

Drinking frequency

Never

25

86.20

24

80.00

−0.592^b

0.554

1-2 days a week

1

3.45

5

16.67

3-4 days a week

1

3.45

0

0

Every day

2

6.90

1

3.33

Exercise frequency

Never

5

17.24

10

33.33

−1.753^b

0.080

1-2 days a week

2

6.90

3

10.00

3-4 days a week

1

3.45

2

6.67

Every day

21

72.41

15

50.00