Table 3.
Multivariate analysis of factors associated with OAC use among patients with nonvalvular atrial fibrillation.
| Variable | CI | 95% confidence interval | p value | |
|---|---|---|---|---|
| Age (year) | ||||
| <50 | 1.0 | |||
| 50-75 | 1.8 | 1.1 | 2.8 | 0.01 |
| >75 | 1.4 | 0.8 | 2.3 | 0.24 |
| Setting of patient enrollment (outpatient vs. inpatient) | 1.9 | 1.5 | 2.6 | <0.001 |
| Current smoking (no vs. yes) | 1.7 | 1.2 | 2.4 | 0.004 |
| Cancer (no vs. yes) | 1.8 | 1.0 | 3.0 | 0.04 |
| Stroke or systemic embolization (yes vs. no) | 1.7 | 1.1 | 2.5 | 0.01 |
| Atrial fibrillation type (nonparoxysmal vs. paroxysmal) | 3.2 | 2.5 | 4.2 | <0.001 |
| HAS-BLED score (per score increase) | 0.8 | 0.7 | 0.9 | <0.001 |
| CHA2DS2-VASc score (≥2 vs. <2) | 3.7 | 2.5 | 5.4 | <0.001 |