Table 1 Demographic information of the sample, n = 322.

Gender

 Male

179

55.59

67

63.81

52

51.49

60

51.72

 Female

143

44.41

38

36.19

49

48.51

56

48.28

Age group

 < 30

67

20.81

6

5.71

33

32.67

28

24.17

 30–59

163

50.62

43

40.95

51

50.5

69

59.48

 ≥ 60

92

28.57

56

53.33

17

16.83

19

16.38

Ethnicity

 Han

233

72.36

91

86.67

75

74.26

67

57.76

 Minority

89

27.64

14

13.33

26

25.74

49

42.24

Education*

 Primary or lower

77

24.06

31

29.81

13

13.00

33

28.45

 Junior high or equivalent

93

29.06

32

30.77

17

17.00

44

37.93

 Senior high or equivalent

83

25.94

23

22.12

36

36.00

24

20.69

 University or higher

67

20.94

18

17.31

34

34.00

15

12.93

WOOP utility: Mean, SD

0.874, 0.147

0.823, 0.207

0.906, 0.107

0.887, 0.106

EQ-5D utility: Mean, SD

0.880, 0.318

0.718, 0.318

0.947, 0.107

0.947, 0.088

EQ-VAS: Mean, SD

83.00, 13.42

77.73, 16.57

85.99, 11.89

84.53, 10.62