Baseline characteristics of the patients included in this study. Values are mean ± SD unless otherwise specified.
| Clinical Feature | All, n = 40 | RA, n = 34 | AS, n = 6 |
|---|---|---|---|
| Age, yrs | 57.5 ± 11.8 | 58.4 ± 10.3 | 52.2 ± 18.7 |
| Disease-specific symptom duration, yrs | 14.4 ± 12.4 | 13.2 ± 11.2 | 21.2 ± 17.3 |
| Female, % | 82.5 | 88.2 | 50 |
| Duration of neck pain, mos | 10.6 ± 8.8 | 10.3 ± 8.5 | 11.8 ± 11.1 |
| NRS neck pain | 5.8 ± 2.0 | 5.7 ± 2.0 | 5.8 ± 2.6 |
| CRP, mg/dl | 0.8 ± 1.3 | 0.9 ± 1.4 | 0.7 ± 0.5 |
| MRI score for BME | 2.8 ± 3.6 | 2.8 ± 3.7 | 3.0 ± 3.3 |
RA: rheumatoid arthritis; AS: ankylosing spondylitis; NRS: numeric rating scale; CPR: C-reactive protein; MRI: magnetic resonance imaging; BME: bone marrow edema.