Characteristics | Mean IL-6 level (pg/ml) | p-value | |
Sex | Female | 15.08 ± 2.34 | 0.3 |
Male | 16.21 ± 2.46 | ||
Smoking history (former smoker) | Yes | 14.75 ± 1.86 | 0.006* |
No | 17.59 ± 2.16 | ||
History of rheumatoid arthritis in parents | Yes | 15.13 ± 2.66 | 0.67 |
No | 15.50 ± 2.17 | ||
Disease activity | Remission | 15.63 ± 2.12 | 0.02* |
Mild | 19.77 ± 0.54 | ||
Moderate | 14.66 ± 2.18 | ||
Severe | 14.74 ± 2.14 |