| Variable | HR | 95% CI | P value |
|---|---|---|---|
| Apixaban versus warfarin | 1.12 | 0.53-2.37 | .77 |
| Age | 1.00 | 0.98-1.03 | .98 |
| BMI | 1.00 | 0.97-1.04 | .86 |
| Gender | 0.63 | 0.32-1.23 | .18 |
| Alcohol use disorder | 0.75 | 0.10-5.59 | .78 |
| Active cancer | 4.20 | 1.88-9.41 | <.01 |
| Diabetes mellitus | 1.38 | 0.70-2.73 | .35 |
| History of stroke | 0.90 | 0.21-3.84 | .88 |
| History of VTE | 1.30 | 0.66-2.58 | .45 |
| Coagulation disorder | 1.44 | 0.55-3.73 | .46 |
| Concomitant clopidogrel use | 4.52 | 1.96-10.47 | <.01 |
| History of surgical intervention | 0 | 0 | .98 |
| Admission for trauma/surgery | 1.00 | 0.23-4.40 | .99 |
| Stepwise regression with backward elimination | |||
| Apixaban vs warfarin | 0.99 | 0.49-1.99 | .97 |
| Active cancer | 4.20 | 1.91-9.26 | <.01 |
| Concomitant clopidogrel use | 4.33 | 1.97-9.52 | <.0 |