Table 1.
Clinical and demographic characteristics of the study participants
| Characteristics | RA-Cold (n = 38) | RA-Hot (n = 45) | NC (n = 47) |
|---|---|---|---|
| Female: male | 7.25 | 6.5 | 0.81 |
| Age, mean (SD), years | 53.1 (11.3)** | 53.1 (14.3)** | 38.2 (19.8) |
| RF, mean (SD), IU/mL | 105.6 (127.1) | 94.4 (94.9) | – |
| ESR, mean (SD), mm/h | 48.3 (33.5)** | 55.9 (28.2)** | 9.6 (8.4) |
| CRP, mean (SD), mg/L | 33.1 (34.6)** | 39.7 (39.6)** | 16.6 (17.5) |
| DAS28-ESR, mean (SD) | 5.1 (1.5) | 5.4 (1.2) | – |
| DAS28-CRP mean (SD) | 5.1 (1.1) | 5.3 (1.1) | – |
RF rheumatoid factor, ESR erythrocyte sedimentation rate, CRP C-reactive protein, DAS28-ESR disease activity score 28-joint count erythrocyte sedimentation rate, DAS28-CRP disease activity score 28-joint count C-reactive protein
**Comparison with the NC group, P < 0.01