From: Neuropathic-like pain features and cross-sectional associations in rheumatoid arthritis
 | No NP | NP | P |
---|---|---|---|
 | Symptoms | Symptoms |  |
Female sex, n (%) | 61 (62.2) | 43 (70.5) | 0.288 |
Age (years), mean ± SD | 57.7 (10.9) | 56.3 (11.0) | 0.432 |
Education, n (%) | Â | Â | Â |
 Low | 22 (22.4) | 15 (25.0) |  |
 Medium | 57 (58.2) | 36 (60.0) |  |
 High | 19 (19.4) | 9 (15) | 0.768 |
Current smoking, n (%) | 15 (15.3) | 12 (19.7) | 0.476 |
Current alcohol, n (%) | 73 (74.5) | 47 (77.0) | 0.715 |
Disease duration (years), median (IQR) | 6.0 (3.0–12.0) | 6.0 (3.0–12.0) | 0.912 |
FM, n (%) | 6 (6.1) | 17 (28.3) | <0.001 |
Prescribed RA medication, n (%) | Â | Â | Â |
 DMARD | 58 (59.2) | 37 (60.7) | 0.854 |
 DMARD plus biologic | 25 (25.5) | 15 (24.6) | 0.897 |
 Biologic | 11 (11.2) | 7 (11.5) | 0.961 |
 NSAID only | 3 (3.1) | 2 (3.3) | 1.000 |
Self-reported current pain medication, n (%) | 37 (37.8) | 44 (73.3) | <0.001 |
Self-reported current neuropathic pain medication, n (%) | 4 (4.1) | 5 (8.3) | 0.263 |
Current pain (0–10), mean ± SD | 2.5 (2.2) | 4.6 (2.3) | <0.001 |
Strongest pain (0–10), mean ± SD | 3.2 (2.6) | 6.0 (2.3) | <0.001 |
Average pain (0–10), mean ± SD | 2.7 (2.2) | 4.8 (2.1) | <0.001 |
DAS28 (0–10), mean ± SD | 2.0 (1.0) | 2.3 (1.0) | 0.095 |
ESR (mm/hour), median (IQR) | 8.0 (2.5–15.0) | 8.0 (5.0–17.0) | 0.610 |
CRP (mg/l), median (IQR) | 2.0 (1.0–7.0) | 3.0 (2.0–8.0) | 0.107 |
SJC (0–28), mean ± SD | 0 (0–1) | 0 (0–1) | 0.603 |
TJC (0–28), mean ± SD | 0 (0–1) | 0 (0–2) | 0.016 |
HAQ-DI (0–3), mean ± SD | 0.5 (0.5) | 1.1 (0.6) | <0.001 |
SF-36 PCS (0–100), mean ± SD | 44.9 (8.2) | 36.4 (8.7) | <0.001 |
SF-36 MCS (0–100), mean ± SD | 52.7 (9.4) | 46.5 (10.6) | <0.001 |