Table 4.
One‐Year Kaplan–Meier Estimates for Readmission Etiologies
| Readmission Cause | UAa | Revasca | ||
|---|---|---|---|---|
| Number of Subsequent Readmissions | UA n=66 | No UA n=229 | Revasc n=45 | No Revasc n=235 |
| Emergent | 84.8 | 77.7 | 88.9 | 86.8 |
| Noncardiac | 34.9 | 57.6 | 42.2 | 54.5 |
| Cardiac | 65.1 | 42.4 | 57.8 | 45.5 |
| Demand ischemia with positive enzymes | 0 | 1.3 | 0 | 0.8 |
| UA with ischemia | 4.5 | 0 | 2.2 | 0.4 |
| UA or chest pain without ischemia | 21.2 | 0 | 20.0 | 11.5 |
| Stable angina | 1.5 | 3.5 | 2.2 | 0.8 |
| Noncardiac chest pain | 15.8 | 17.5 | 20.0 | 22.4 |
| Subacute stent thrombosis | 0 | 0 | 0 | 0.8 |
| Heart failure | 15.8 | 14.9 | 6.7 | 12.3 |
| Arrhythmia | 3.0 | 4.4 | 2.2 | 2.1 |
| Bleeding | 1.5 | 0.4 | 2.2 | 3.4 |
| Elective cardiac catheterization | 3.0 | 8.3 | 2.2 | 1.7 |
| Syncope | 1.5 | 2.2 | 0 | 2.1 |
| Other cardiac reason | 3.0 | 2.6 | 2.2 | 4.3 |
Data are shown as percentages. Revasc indicates revascularization; UA, unstable angina.
a
Data were missing for 4.2% of patients in the UA cohort and 3.6% of patients in the unplanned revascularization cohort.