Cox proportional hazards model for comparison of survival among non-obstructive CAD and obstructive CAD with and without revascularisation in patients with heart failure with reduced ejection fraction (HFrEF) (n=239). HRs and 95% CIs are shown
| Survival rate (%) | HRs (95% CI) | Significance | |
| Obstructive CAD with revascularisation | 93.1 | Reference | – |
| Non-obstructive CAD | 92.2 | 1.0 (0.3 to 3.1) | NS* |
| Obstructive CAD without revascularisation | 75.5 | 4.3 (1.4 to 13.2) | 0.01 |
*P>0.05.
CAD, coronary artery disease; NS, not significant.