Table 4 Subscales of SF-36, SF-6D, and EQ-5D-3 L scores adjusted by age, sex, disease duration, comorbidities, and disease activity state

Physical function

66.2 (2.3)

67.6 (2.3)

67.3 (2.6)

61.3 (2.4)

0.245

0.682

0.773

0.136

Role–physical

64.7 (2.5)

70.3 (2.6)

66.7 (2.9)

58.0 (2.7)

0.011

0.123

0.621

0.062

Bodily pain

56.3 (2.3)

59.7 (2.3)

69.6 (2.6)

51.9 (2.4)

< 0.001

0.302

< 0.001

0.185

General health

37.1 (1.8)

48.1 (1.8)

46.8 (2.1)

38.3 (1.9)

< 0.001

< 0.001

0.001

0.632

Vitality

48.7 (2.0)

48.8 (2.1)

50.4 (2.3)

38.3 (2.1)

< 0.001

0.960

0.592

< 0.001

Social function

70.1 (2.5)

77.1 (2.5)

76.0 (2.8)

64.2 (2.6)

0.002

0.042

0.128

0.095

Role–emotional

66.4 (2.7)

76.8 (2.7)

74.4 (3.0)

60.7 (2.8)

< 0.001

0.005

0.057

0.129

Mental health

58.3 (2.0)

69.8 (2.0)

68.6 (2.3)

58.2 (2.1)

< 0.001

< 0.001

0.001

0.947

Physical component score

42.8 (0.8)

44.3 (0.8)

45.3 (0.9)

42.3 (0.8)

0.068

0.164

0.042

0.675

Mental component score

41.8 (1.1)

48.3 (1.1)

47.4 (1.2)

41.5 (1.1)

< 0.001

< 0.001

0.001

0.846

SF-6D

0.68 (0.01)

0.72 (0.01)

0.72 (0.01)

0.66 (0.01)

< 0.001

0.015

0.010

0.082

EQ-5D-3 L

0.74 (0.02)

0.81 (0.02)

0.83 (0.02)

0.76 (0.02)

< 0.001

< 0.001

< 0.001

0.212