Table 3.
Unadjusted Rates of Outcomes by OAC Use
| Outcome | OAC Use (n=837) | No OAC Use (n=8729) | Absolute Risk Difference With OAC Use | Number Needed to Harm | P Value |
|---|---|---|---|---|---|
| Primary | |||||
| In‐hospital major bleeding | 88 (10.5) | 565 (6.47) | +4.04 | 25 | <0.01 |
| In‐hospital mortality | 21 (2.51) | 188 (2.15) | +0.36 | — | 0.50 |
| Secondary | |||||
| Access‐site bleeding | 19 (2.27) | 111 (1.27) | +1.00 | 101 | 0.017 |
| Non–access‐site bleeding | 69 (8.24) | 454 (5.20) | +3.04 | 33 | <0.01 |
| RBC transfusion | 60 (7.17) | 364 (4.17) | +3.00 | 34 | <0.01 |
| In‐hospital stent thrombosis | 3 (0.36) | 28 (0.32) | +0.04 | — | 0.85 |
| Post‐PCI MI | 21 (2.51) | 264 (3.02) | −0.51 | — | 0.40 |
| CVA/stroke | 4 (0.48) | 45 (0.52) | −0.04 | — | 0.88 |
| Post‐PCI length of stay, days, mean±SD | 3.94±5.50 | 2.79±4.56 | — | — | <0.01 |
| 30‐day readmissions within index health care system | 86 (10.3) | 606 (6.94) | +3.33 | 30 | <0.01 |
| 90‐day readmissions within index health care system | 185 (22.1) | 1146 (13.1) | +8.97 | 12 | <0.01 |
Data are shown as n (%) except as noted. CVA indicates cerebrovascular accident; MI, myocardial infarction; OAC, oral anticoagulant; PCI, percutaneous coronary intervention; RBC, red blood cell.