Table 2

Proportion of hands showing different features of arthritis on magnetic resonance imaging

Erosion

Bone marrow edema

Synovitis

Joint effusion

Tenovaginitis

Signs of arthritis

Not present/indeterminate

13

63

32

42

76

Present

87

37

68

58

24

Severe

3

16

13

0

0

Affected joints in affected hands

2.2 ± 1.6 (1 to 6)

1.6 ± 1 (1 to 4)

4.1 ± 2.6 (1 to 9)

4.2 ± 2.6 (1 to 10)

N/A

Data presented as percentage or mean number ± standard deviation (range). For definition of definite or severe please refer to Materials and methods. N/A, not applicable.

Akbayrak et al. Arthritis Research & Therapy 2013 15:R2   doi:10.1186/ar4128