Event rates within 1 year following coronary artery bypass grafting, by heart failure status
| Event | pEF, no HF (n=22 231) | rEF, no HF (n=10 284) | HFpEF (n=2752) | HFrEF (n=4816) | Total (n=40 083) | P values* |
| Disability, n (%) | 846 (3.8) | 480 (4.7) | 313 (11.4) | 513 (10.7) | 2152 (5.4) | <0.001 |
| Death, n (%) | 400 (1.8) | 303 (2.9) | 229 (8.3) | 534 (11.1) | 1466 (3.7) | <0.001 |
| ≥3 non-elective hospitalisations, n (%) | 274 (1.2) | 165 (1.6) | 163 (5.9) | 263 (5.5) | 865 (2.2) | <0.001 |
| Long-term care admission, n (%) | 88 (0.4) | 57 (0.6) | 42 (1.5) | 67 (1.4) | 254 (0.6) | <0.001 |
| Stroke, n (%) | 533 (2.4) | 299 (2.9) | 147 (5.3) | 236 (4.9) | 1215 (3.0) | <0.001 |
*P values were obtained using one-way analysis of variance test for means and χ2 test for categorical variables.
HF, heart failure; HFpEF, HF with preserved ejection fraction; HFrEF,HF with reduced ejection fraction ; pEF, preserved ejection fraction; rEF, reserved ejection fraction.