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Table 1 Baseline characteristics of respondents and non-respondents

From: Association of changes in health-related quality of life in coronary heart disease with coronary procedures and sociodemographic characteristics

 

I. Total

II. Non-respondents at 6 weeks

III. Respondents at 6 weeksa

IV. Respondents at 6 weeks & 2 yearsa

Comparison Column IV and total nonresponse (P-value)

Comparison Column IV and nonresponse at 6 weeks (P-value)

 

N = 1534

N = 475

N = 700

N = 344

  

Age, mean (SD)

69 (12)

71 (12)

65 (11)

64 (10)

<0.001

0.001

Gender (% women)

34

44

29

27

0.001

0.2

> 10 years education (%)

  

44

49

 

0.014

> 1 diagnosis (%)

65

72

60

56

0.001

0.039

Emergency admission (%)

70

80

62

58

<0.001

0.07

Acute Coronary Syndrome (%)

31

32

28

26

0.047

0.4

Invasive Coronary Procedure (%)

33

22

40

43

<0.001

0.06

Teaching Hospital (%)

54

48

57

59

  

Central Hospital (%)

26

27

25

22

0.042

0.123

Local Hospital (%)

20

25

18

19

  
  1. a Respondents to all multi-item scales of the SF-36
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Health and Quality of Life Outcomes

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