Table 1.
Baseline characteristics of the study participants
| RA patients (n=61) | Controls (n=107) | P value† | |
|---|---|---|---|
| Age, years | 48.1±7.9 | 47.3±9.4 | 0.269 |
| Duration of disease, years | 6 [3–12] | NA | NA |
| Current smoker, n (%) | 5 (8.2) | 2 (1.9) | 0.100‡ |
| Blood pressure, mmHg | |||
| Systolic | 125.7±18.1 | 124.4±16.9 | 0.075 |
| Diastolic | 81.4±11.2 | 78.8±18.1 | 0.011 |
| Diabetes mellitus, n (%) | 1 (0.02) | 4 (0.04) | 0.654‡ |
| Body mass index, kg/m2 | 22.8±3.5 | 23.6±3.2 | 0.315 |
| Creatinine, mg/dl | 0.62±0.11 | 0.69±0.11 | 0.121 |
| Cholesterol, mg/dl | |||
| Total | 185.2±31.9 | 193.1±44.0 | 0.355 |
| High-density lipoprotein | 57.9±16.4 | 46.6±12.3 | <0.001 |
| Low-density lipoprotein | 94.9±25.4 | 113.9±35.5 | 0.068 |
| Triglyceride, mg/dl | 93.0±48.8 | 117.3±83.4 | 0.425 |
| Statin, n (%) | 7 (11.5) | 0 (0) | <0.001‡ |
Data are presented as mean ± standard deviation, median [interquartile range], or number (percentage) as appropriate
NA not applicable
†Unless otherwise noted, two-sample t test was used
‡Fisher’s two-tailed exact test was used