Variable | Hazard ratio | p |
---|---|---|
(95% CI) | ||
Age (years) | ||
<65 | Reference | |
≥65 | 1.36 (1.09 – 1.7) | 0.006 |
EuroSCORE | ||
<3 | Reference | |
3–5 | 1.46 (1.13 – 1.88) | 0.003 |
>5 | 1.71 (1.27 – 2.3) | <0.001 |
Procedure | ||
CABG | Reference | |
Valve | 1.6 (1.28 – 1.99) | <0.001 |
CABG + valve | 1.73 (1.12 – 2.67) | 0.013 |
Left ventricular ejection fraction (%) | ||
<40 | 1.63 (1.19 – 2.24) | 0.002 |
40–59 | 1.32 (1.07 – 1.64) | 0.010 |
≥60 | Reference | |
Units of RBC transfused | ||
None | Reference | |
Low-transfusion (1–3 units) | 1.16 (0.94 – 1.42) | 0.164 |
High-transfusion (>3 units) | 2.00 (1.44 – 2.79) | <0.001 |