Table 2 Significant differences of physical function and health-related quality of life between levels of disease activity (SDAI) in early (≤2 years) and late rheumatoid arthritis patients

EARLY RA

REM (n = 7)

0.14 ± 0.2

0.74 ± 0.15

0.92 ± 0.10

42.7 ± 11.7

LDA (n = 26)

0.39 ± 0.42

0.70 ± 0.15

0.81 ± 0.16

41.8 ± 7.1

MDA/HDA (n = 25)

1.05 ± 0.81

0.60 ± 0.13

0.71 ± 0.19

33.1 ± 9.8

P Value

<0.01

0.01

0.01

0.006

LATE RA

REM (n = 80)

0.41 ± 0.59

0.75 ± 0.15

0.89 ± 0.12

46.3 ± 8.3

LDA (n = 124)

0.78 ± 0.71

0.65 ± 0.14

0.77 ± 0.16

37.6 ± 10.9

MDA/HDA (n = 94)

1.30 ± 0.72

0.57 ± 0.11

0.65 ± 0.22

28.9 ± 8.8

P Value

<0.01

<0.01

<0.01

<0.01