Table 1. Characteristics of 132 RA patients from the Brazilian Amazon.
| RA features | 132 RA cases | 218 Control Individuals |
| Female/Male, n (%) | 119 (90.2%)/13 (9.8%) * | 196 (89.9%)/22 (10.1%) * |
| Age, mean (SD) | 48.1 (12.3) ** | 50.5 (9.97) ** |
| Positive Rheumatoid Factor, n (%) | 98 (74.2%) | - |
| Age at onset, mean (SD) | 42.4 (±13.2) | - |
| Disease Duration in years, mean (SD) | 4.9 (±3.5) | - |
| Early Rheumatoid Arthritis | 43 (32.6%) | - |
| DAS28, mean (SD) | 4.51 (±1.59) | - |
| HAQ, mean (SD) | 1.68 (±0.9) | |
| Extra-articular manifestations, n (%) | 34 (25.7%) | - |
| Sjögren Syndrome, % | 15.9% | |
| Rheumatoid Nodules, % | 6.4% | |
| Peripheral Neuropathy, % | 1.5% | |
| Pulmonary Fibrosis, % | 1.5% | |
| DMARDS, n (%) | 92 (69.7%) | - |
| Use of Anti-TNF, n (%) | 40 (30.3%) | - |
| Years of Education, mean (SD) | 9.4 (±4.6) | - |
| Higher Education, n (%) | 4 (3.0%) | - |
| Traditional Factors for CVD | - | |
| Current or Past Smoking, n (%) | 44 (33.3%) | - |
| Hypertension, n (%) | 16 (11.4%) | - |
| Dyslipidemia, n (%) | 81 (60.4%) | - |
| Diabetes, n (%) | 4 (3%) | - |
*
p = 0.360;
**
p = 0.941.