Characteristics of 77 patients with rheumatoid arthritis (RA) and 154 patients without RA at onset of myocardial infarction (MI).
| Characteristic | MI Patients with RA, n = 77 | MI Patients without RA, n = 154 | p |
|---|---|---|---|
| Age, yrs, mean ± SD | 72.4 ± 12.2 | 72.4 ± 12.2 | 1.0 |
| Women, n (%) | 42 (55) | 84 (55) | 1.0 |
| Medical history, n (%) | |||
| Hypertension | 55 (71) | 99 (63) | 0.26 |
| Dyslipidemia | 31 (40) | 62 (40) | 0.91 |
| Diabetes mellitus | 21 (27) | 41 (26) | 0.92 |
| Current smoking | 9 (12) | 32 (21) | 0.06 |
| Obesity (body mass index ≥ 30 kg/m2) | 26 (33) | 45 (29) | 0.48 |
| Revascularization procedures | 21 (27) | 41 (27) | 0.91 |
| Cerebrovascular disease | 18 (23) | 33 (21) | 0.73 |
| Peripheral vascular disease | 16 (21) | 39 (25) | 0.45 |
| MI characteristics and severity, n (%) | |||
| Killip class II–IV | 28 (36) | 55 (35) | 0.92 |
| Electrocardiogram, n (%) | |||
| Anterior MI | 25 (32) | 50 (32) | 0.92 |
| ST-segment elevation | 16 (21) | 43 (28) | 0.24 |
| Presence of Q waves | 34 (44) | 68 (44) | 0.96 |