Table 3. Outcomes until study outcome end date between warfarin users and non-users in KPCO-I and KPCO-II cohorts.
| Outcomes | Total participants (n = 9074) | KPCO-I (n = 4632) | KPCO-II (n = 4442) | ||||
|---|---|---|---|---|---|---|---|
| Warfarin users (n = 2316) | Warfarin non-users (n = 2316) | P-value | Warfarin users (n = 2221) | Warfarin non-users (n = 2221) | P-value | ||
| Stroke, n (%) | 278 (3.06) | 65 (2.81) | 71 (3.07) | 0.602 | 71 (3.20) | 71 (3.20) | 1.000 |
| Major bleeding, n (%) | 453 (4.99) | 181 (7.82) | 99 (4.27) | <0.001 | 106 (4.77) | 67 (3.02) | 0.003 |
| Death, n (%) | 2186 (24.09) | 442 (19.08) | 752 (32.47) | <0.001 | 355 (15.98) | 637 (28.68) | <0.001 |