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Comparison of Bleeding and BRI in New Patients Versus All Others
| Characteristic | New Patients*(N=502) N (%) | All Others (N=767) N (%) | P Value |
|---|---|---|---|
| Bleeds | |||
| Minor | 28 (5.6) | 43 (5.6) | 1.00 |
| Major | 11 (2.2) | 31 (4.0) | .08 |
| BRI† | |||
| High | 59 (11.8) | 137 (17.9) | .009 |
| Intermediate | 385 (76.7) | 558 (72.8) | |
| Low | 58 (11.6) | 72 (9.4) | |
Patients who were newly started on warfarin between January 1, 2001 and December 31, 2002.
Percentages not equal to 100 because of rounding.
BRI, outpatient bleeding risk index.
