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Table 1 Patient characteristics and differences between the 2006/2009 samples and the pooled estimation/validation sets

From: Mapping health outcome measures from a stroke registry to EQ-5D weights

 

2006 sample (n = 105)

2009 sample (n = 439)

P

Estimation set (n = 272)

Validation set (n = 272)

P

Mean/Proportion

SD

Mean/Proportion

SD

 

Mean/Proportion

SD

Mean/Proportion

SD

 

Age

71

13

74

11

0.048

73

12

73

11

0.934

Male sex

55%

0.50

54%

0.50

0.785

52%

0.50

56%

0.50

0.391

RLS 2-8

6%

0.23

10%

0.30

0.199

9%

0.29

9%

0.29

1.000

Stroke unit

45%

0.50

75%

0.43

0.000

69%

0.46

69%

0.46

0.831

Ischemic stroke

80%

0.40

89%

0.32

0.019

87%

0.34

87%

0.34

0.899

Previous stroke

17%

0.38

26%

0.44

0.063

24%

0.43

24%

0.43

0.862

Atrial fibrillation

20%

0.40

26%

0.44

0.234

28%

0.45

21%

0.41

0.048

Diabetes

13%

0.34

19%

0.39

0.211

19%

0.40

16%

0.36

0.283

Hypertension

51%

0.50

58%

0.49

0.219

54%

0.50

60%

0.49

0.150

Smoker

20%

0.40

14%

0.35

0.120

16%

0.37

15%

0.35

0.637

Proxy response

2%

0.14

9%

0.29

0.011

10%

0.29

6%

0.24

0.153

EQ-5D index

0.57

0.42

0.61

0.38

0.258

0.61

0.41

0.60

0.36

0.756

EQ-5D VAS

62

24

66

23

0.104

66

24

64

22

0.492

  1. Note: SD standard deviation, RLS 2-8 sluggish or comatose at hospital admission; VAS visual analogue scale.