Differences in main pain localization | Hand pain (n = 50) | Low back pain (n = 19) |
---|---|---|
Age (years) | 55.4 ± 14.5 | 59.0 ± 13.1 |
Subset of disease manifestation | ||
 Very early | 6/50 (12.0%) | 6/19 (31.6%) |
 Mild | 12/50 (24.0%) | 5/19 (26.3%) |
 Established | 32/50 (64.0%) | 8/19 (42.1%) |
Cochin Hand Function Scale | 7.0 (0, 20), n = 35 | 0.0 (0, 5), n = 14 |
mRSS | 3.5 (0, 16), n = 50 | 2.0 (0, 7), n = 19 |
Disease characteristics | ||
 Active digital ulcers | 9/50 (18.0%) | 2/19 (10.5%) |
 Previous digital ulcers | 17/50 (34.0%) | 4/19 (21.1%) |
 Joint synovitis | 14/50 (28.0%) | 4/19 (21.1%) |
 Clinical signs of arthritis on the hands | 7/43 (16.3%) | 1/15 (6.7%) |
 Joint contractures | 25/43 (58.1%) | 2/11 (18.2%) |
 Tendon friction rubs | 5/49 (10.2%) | 0/19 (0.0%) |
 Subcutaneous calcinosis of the hands | 6/42 (14.3%) | 0/15 (0.0%) |