Table 1.
Characteristics of Patients with AF classified based on Warfarin Use
| Characteristics | Received Warfarin n = 199 | Did Not Receive Warfarin n = 165 | p value |
| Age, years, mean | 76.3 ± 11.3 | 81.3 ± 10.3 | < 0.001* |
| Age 75 ≥ y, n (%) | 125 (62.8) | 134 (81.2) | < 0.001* |
| AA Race, n (%) | 74 (37.2) | 82 (49.7) | 0.016* |
| Women, n (%) | 76 (38.2) | 79 (47.9) | 0.063 |
| CAD, n (%) | 92 (46.2) | 87 (52.7) | 0.217 |
| Mean CHADS2 Score ± S.D | 2.8 ± 1.3 | 3.2 ± 1.3 | 0.004* |
| CHADS2 Score- 3 or greater (%) | 111 (56) | 116 (70) | 0.004* |
| Chads2 Score | |||
| No. of points, n (%) | |||
| 0 | 3 (1.5) | 2 (1) | |
| 1 | 22 (11) | 12 (7) | |
| 2 | 63 (32) | 35 (21) | |
| 3 | 59 (30) | 58 (35) | |
| 4 | 32 (16) | 28 (17) | |
| 5 | 15 (7.5) | 22 (14) | |
| 6 | 5 (2.5) | 8 (5) | |
| Heart Failure, n (%) | 120 (60.3) | 103 (62.4) | 0.679 |
| Diabetes, n (%) | 68 (34.2) | 66 (40.0) | 0.251 |
| Hypertension, n (%) | 179 (90.0) | 149 (90.3) | 0.911 |
| Prior Stroke, n (%) | 47 (23.6) | 43 (26.1) | 0.591 |
Abbreviations: AA- African American, CAD- Coronary Artery Disease, CHADS2- C-cardiac failure, H-hypertension, A-age > 75 years, D- diabetes mellitus, S- stroke, S.D- Standard deviation
*Statistically significant, p < 0.05