Table 3 Relationships between study variables and HRQoL (SIP scores) of CHD inpatients

Gender

 Male

16.50 ± 8.43

0.001**

27.48 ± 9.97

0.347

23.49 ± 8.20

0.006**

 Female

20.75 ± 10.82

28.69 ± 9.30

26.60 ± 8.59

Age

 < 60

11.21 ± 6.08

 < 0.001***

22.55 ± 7.91

 < 0.001**

18.50 ± 6.13

 < 0.001***

 60–70

17.69 ± 5.92

29.37 ± 9.69

25.05 ± 6.77

 > 70

26.00 ± 10.70

31.54 ± 7.92

30.69 ± 7.92

Marital status

 Married

17.60 ± 9.20

0.001**

27.43 ± 9.44

0.024*

24.16 ± 8.29

 < 0.001***

 Unmarried

23.70 ± 11.71

31.35 ± 10.11

29.44 ± 8.38

Educational level

 ≤ Junior high school

20.74 ± 10.00

 < 0.001***

30.27 ± 9.16

 < 0.001***

27.09 ± 8.09

 < 0.001***

 Senior high school or secondary technical school

15.50 ± 7.60

25.36 ± 9.09

22.31 ± 7.40

 ≥ College degree

12.15 ± 8.84

20.64 ± 8.50

18.33 ± 8.12

 Monthly income (Yuan)

 < 1000

21.78 ± 10.76

0.002**

33.19 ± 9.48

 < 0.001***

28.79 ± 8.54

 < 0.001***

 1000–3000

19.18 ± 9.71

28.62 ± 8.80

25.81 ± 8.00

 > 3000

15.51 ± 8.69

23.62 ± 8.93

21.23 ± 7.78

Residence

 Countryside

19.21 ± 10.55

0.044*

28.70 ± 10.43

0.039*

25.30 ± 8.88

0.028*

 City

14.34 ± 9.62

20.80 ± 9.30

18.91 ± 8.38

 Illness duration (year)

  < 1

14.63 ± 8.70

 < 0.001***

25.10 ± 8.95

0.001**

21.47 ± 7.46

 < 0.001***

 1–5

18.55 ± 9.97

28.11 ± 9.19

24.92 ± 8.58

 5–10

21.04 ± 9.67

29.48 ± 10.49

27.18 ± 8.72

 > 10

24.26 ± 9.05

32.65 ± 9.14

30.25 ± 6.89

Cardiac function grade

 I

11.88 ± 7.66

 < 0.001***

19.83 ± 7.00

 < 0.001***

16.84 ± 6.35

 < 0.001***

 II

14.37 ± 8.27

24.89 ± 8.69

21.32 ± 7.40

 III

24.38 ± 7.74

32.88 ± 8.65

30.36 ± 6.08

 IV

35.18 ± 10.61

38.27 ± 8.07

38.62 ± 4.67

Disease classification

 Angina pectoris

16.90 ± 8.65

 < 0.001***

27.06 ± 9.61

0.001**

23.71 ± 9.61

 < 0.001***

 Ischemic cardiomyopathy

27.30 ± 9.39

34.93 ± 6.66

32.96 ± 5.52

 Myocardial infarction

29.68 ± 14.00

31.55 ± 9.47

31.33 ± 10.88

 Level of family support

 Good (APGAR score = 7–10)

18.80 ± 11.21

 < 0.001***

23.82 ± 7.89

 < 0.001***

23.13 ± 8.85

 < 0.001***

 Fair (APGAR score = 4–6)

21.09 ± 8.62

29.13 ± 7.69

25.30 ± 7.59

 Poor (APGAR score = 0–3)

25.85 ± 7.64

38.57 ± 8.37

30.00 ± 6.83