Table 1.
Demographic and clinical characteristics of the study groups
| Characteristics | RA patients | Controls | P |
|---|---|---|---|
| Age, mean ± SD years | 47.75 ± 14.91 | 45.31 ± 14.42 | > 0.05 |
| Sex, % women | 74.42 | 60.00% | |
| BMI, kg/cm2 | 27.51 ± 3.05 | 25.84 ± 2.65 | |
| Cigarette smoking, % | 29.83 | 40.0 | |
| Duration of symptoms, mean ± SD months | 44.93 ± 24.47 | NA | |
| Disease duration, mean ± SD months | 39.13 ± 23.8 | NA | |
| Delay in diagnosis, mean ± SD months | 4.98 ± 4.05 | NA | |
| HAQ total scores, mean ± SD | 2.94 ± 2.26 | NA |
BMI: Body Mass Index; HAQ: Health Assessment Questionnaire; NA: Not applicable.