Table 2 SF-36 scores for 8 dimensions reflecting HRQoL^a by various population stratifications (n = 191)

Gender

Male

54.22 ± 33.46

19.61 ± 35.47

41.96 ± 26.79

34.08 ± 20.72

45.88 ± 24.08

70.34 ± 32.30

25.49 ± 40.87

62.12 ± 21.25

Female

60.11 ± 27.80

23.21 ± 37.17

47.39 ± 26.16

37.67 ± 20.32

52.75 ± 22.71

76.61 ± 31.91

33.10 ± 40.87

60.40 ± 23.41

P

0.264

0.549

0.209

0.284

0.070

0.233

0.257

0.646

Age, y

 < 45

69.04 ± 24.53 ^b

25.28 ± 36.05

49.29 ± 23.14

39.47 ± 18.64

55.17 ± 21.25 ^b

80.06 ± 28.75 ^b

34.08 ± 40.19

61.84 ± 21.86

 ≥ 45

49.36 ± 30.34

19.61 ± 37.17

43.01 ± 28.69

34.30 ± 21.68

47.21 ± 24.32

70.47 ± 34.19

28.43 ± 41.53

60.00 ± 23.69

P

 < 0.001

0.287

0.096

0.078

0.018

0.039

0.342

0.579

Education

 ≤ Junior middle school

46.71 ± 29.88 ^b

14.63 ± 33.09 ^b

36.32 ± 25.81 ^b

31.71 ± 22.34 ^b

42.20 ± 25.03 ^b

64.33 ± 34.31 ^b

23.17 ± 37.29

52.59 ± 24.81 ^b

Senior middle school

62.32 ± 29.63

26.22 ± 39.51

47.59 ± 26.64

40.37 ± 20.89

56.95 ± 19.97

80.18 ± 29.04

36.59 ± 46.43

68.10 ± 21.46

 ≥ College

70.51 ± 23.01

29.04 ± 37.81

56.54 ± 22.67

40.54 ± 16.33

57.79 ± 19.25

84.56 ± 27.16

37.25 ± 40.53

66.47 ± 17.58

P

 < 0.001

0.041

 < 0.001

0.013

 < 0.001

 < 0.001

0.068

 < 0.001

Residence

Rural

53.84 ± 30.20

20.79 ± 36.04

39.97 ± 25.61 ^b

33.25 ± 21.54 ^b

47.58 ± 25.33

71.57 ± 35.84

31.23 ± 42.33

57.09 ± 25.11 ^b

Urban

63.18 ± 28.06

23.70 ± 37.41

51.84 ± 25.90

40.14 ± 18.77

54.22 ± 20.54

78.26 ± 27.58

30.90 ± 39.66

64.58 ± 19.72

P

0.002

0.020

0.048

0.151

0.956

0.023

0.134

0.585

Income/month, yuan^c

 < 1000

47.89 ± 32.66 ^b

13.33 ± 32.25

38.42 ± 26.51 ^b

31.13 ± 24.78

41.67 ± 25.02 ^b

64.72 ± 34.78 ^b

23.70 ± 40.59

53.96 ± 26.09 ^b

1000–3000

59.57 ± 27.50

23.40 ± 37.35

44.35 ± 25.27

36.99 ± 19.09

52.39 ± 22.51

76.33 ± 32.56

30.85 ± 40.08

61.91 ± 21.99

 > 3000

65.87 ± 27.81

27.88 ± 38.24

55.31 ± 25.99

41.04 ± 17.73

56.25 ± 20.88

81.25 ± 26.72

37.82 ± 42.28

64.92 ± 20.24

P

0.009

0.137

0.005

0.057

0.005

0.033

0.238

0.050

Occupation

Unemployed

48.36 ± 28.69 ^b

13.49 ± 32.26 ^b

37.93 ± 27.00 ^b

32.29 ± 20.26 ^b

43.82 ± 24.00 ^b

67.11 ± 34.45 ^b

23.68 ± 38.80

55.21 ± 25.91 ^b

Blue collar

59.49 ± 29.49

19.87 ± 34.02

39.67 ± 24.63

35.13 ± 24.12

49.10 ± 23.48

70.19 ± 32.77

32.48 ± 42.22

57.54 ± 22.06

White collar

68.22 ± 27.05

32.24 ± 39.96

57.16 ± 22.64

41.95 ± 17.43

58.95 ± 19.82

85.20 ± 26.28

37.72 ± 41.58

68.21 ± 17.55

P

 < 0.001

0.006

 < 0.001

0.012

 < 0.001

0.001

0.103

0.001

Disease duration, y

 ≤ 1

61.60 ± 29.62 ^b

23.96 ± 39.01 ^b

48.36 ± 28.16 ^b

39.79 ± 21.43

54.17 ± 24.97 ^b

80.73 ± 33.76 ^b

36.57 ± 44.11

62.17 ± 24.60

1–5

66.06 ± 26.74

35.11 ± 42.56

55.83 ± 23.92

38.40 ± 17.46

57.45 ± 20.32

84.57 ± 28.10

36.17 ± 44.95

64.00 ± 20.24

 > 5

50.56 ± 29.45

12.15 ± 26.20

37.06 ± 23.38

32.53 ± 20.76

43.40 ± 21.36

62.85 ± 29.22

22.22 ± 33.10

57.50 ± 22.41

P

0.010

0.003

 < 0.001

0.083

0.002

 < 0.001

0.066

0.262

DAS28^d

Remission

82.70 ± 14.82 ^b

58.50 ± 44.50 ^b

75.52 ± 13.33 ^b

48.92 ± 16.06 ^b

65.40 ± 18.59 ^b

97.75 ± 24.57 ^b

62.00 ± 40.41 ^b

71.28 ± 17.50 ^b

Low

72.16 ± 18.01

20.10 ± 30.01

53.47 ± 16.93

44.37 ± 19.12

61.27 ± 17.60

90.93 ± 19.86

35.29 ± 43.93

69.10 ± 17.78

Moderate

49.66 ± 20.75

4.31 ± 15.63

30.57 ± 16.53

29.28 ± 17.84

42.16 ± 18.94

60.34 ± 25.02

10.92 ± 24.49

52.48 ± 22.00

High

15.16 ± 17.71

1.56 ± 6.15

15.56 ± 10.81

18.91 ± 14.47

27.66 ± 19.55

40.23 ± 25.55

12.50 ± 27.76

46.63 ± 26.05

P

 < 0.001

 < 0.001

 < 0.001

 < 0.001

 < 0.001

 < 0.001

 < 0.001

 < 0.001

Overall

58.53 ± 29.44

22.25 ± 36.67

45.94 ± 26.37

36.71 ± 20.44

50.92 ± 23.22

74.93 ± 32.05

31.06 ± 40.91

60.86 ± 22.81