Table 3.
The age or the number of transfused RBCs and the postoperative clinical outcomes
| Univariate analysis | Multivariable analysis | ||||||
|---|---|---|---|---|---|---|---|
| N (%) | OR | 95% CI | P value | OR | 95% CI | P value | |
| Number of transfused RBCs | |||||||
| In-hospital all-cause mortality | 17 (1.6) | 1.1 | 1.07-1.14 | <0.001 | 1.1 | 1.06-1.14 | <0.001 |
| In-hospital MACCEs | 74 (6.9) | 1.06 | 1.04-1.09 | <0.001 | 1.05 | 1.03-1.08 | <0.001 |
| New renal failure | 54 (5.0) | 1.05 | 1.03-1.07 | <0.001 | 1.03 | 1.00-1.05 | 0.04 |
| Respiratory complication | 33 (3.1) | 1.05 | 1.03-1.07 | <0.001 | 1.04 | 1.01-1.06 | 0.005 |
| Postoperative wound complication | 49 (4.6) | 1.04 | 1.02-1.06 | <0.001 | 1.03 | 1.01-1.06 | 0.001 |
| Atrial fibrillation | 290 (29.1) | 1.04 | 1.02-1.06 | <0.001 | 1.02 | 1.00-1.04 | 0.038 |
| Arrhythmia other than atrial fibrillation | 112 (10.4) | 1.05 | 1.03-1.07 | <0.001 | 1.03 | 1.02-1.05 | <0.001 |
| Bleeding-related reoperation | 29 (2.7) | 1.09 | 1.06-1.12 | <0.001 | 1.08 | 1.05-1.12 | <0.001 |
| Oldest age of transfused RBCs | |||||||
| In-hospital all-cause mortality | 1.1 | 1.02-1.19 | 0.015 | 1.01 | 0.91-1.12 | 0.896 | |
| In-hospital MACCEs | 1.01 | 0.97-1.05 | 0.63 | 0.97 | 0.93-1.02 | 0.198 | |
| New renal failure | 1.08 | 1.03-1.13 | 0.001 | 1.03 | 0.98-1.09 | 0.251 | |
| Respiratory complication | 1.07 | 1.01-1.13 | 0.02 | 1.01 | 0.95-1.08 | 0.726 | |
| Postoperative wound complication | 1.1 | 1.05-1.15 | <0.001 | 1.09 | 1.04-1.14 | 0.001 | |
| Atrial fibrillation | 1.03 | 1.00-1.05 | 0.022 | 1.01 | 0.99-1.04 | 0.339 | |
| Arrhythmia other than atrial fibrillation | 1.04 | 1.00-1.07 | 0.037 | 1.02 | 0.98-1.05 | 0.348 | |
| Bleeding-related reoperation | 1.08 | 1.02-1.15 | 0.007 | 1.02 | 0.95-1.10 | 0.531 | |
| Mean age of transfused RBCs | |||||||
| In-hospital all-cause mortality | 0.93 | 0.84-1.04 | 0.23 | 0.95 | 0.82-1.09 | 0.446 | |
| In-hospital MACCEs | 0.95 | 0.90-1.00 | 0.053 | 0.95 | 0.90-1.01 | 0.1 | |
| New renal failure | 0.99 | 0.93-1.05 | 0.684 | 1.01 | 0.94-1.08 | 0.857 | |
| Respiratory complication | 0.99 | 0.92-1.06 | 0.731 | 0.98 | 0.90-1.06 | 0.629 | |
| Postoperative wound complication | 1.04 | 0.98-1.10 | 0.201 | 1.05 | 0.99-1.12 | 0.106 | |
| Atrial fibrillation | 1 | 0.97-1.03 | 0.969 | 1 | 0.97-1.04 | 0.783 | |
| Arrhythmia other than atrial fibrillation | 0.99 | 0.95-1.03 | 0.614 | 1 | 0.96-1.05 | 0.869 | |
| Bleeding-related reoperation | 1.04 | 0.96-1.12 | 0.332 | 1.08 | 0.99-1.18 | 0.094 | |
| Any RBCs unit >14 days | |||||||
| In-hospital all-cause mortality | 1.83 | 0.64-4.84 | 0.225 | 0.7 | 0.20-2.45 | 0.278 | |
| In-hospital MACCEs | 1.02 | 0.64-1.64 | 0.933 | 0.74 | 0.44-1.24 | 0.256 | |
| New renal failure | 1.5 | 0.87-2.60 | 0.148 | 1.05 | 0.57-1.97 | 0.869 | |
| Respiratory complication | 1.54 | 0.77-3.09 | 0.224 | 1.06 | 0.50-2.27 | 0.878 | |
| Postoperative wound complication | 1.96 | 1.10-3.50 | 0.023 | 1.71 | 0.93-3.12 | 0.083 | |
| Atrial fibrillation | 1.2 | 0.92-1.58 | 0.18 | 1.06 | 0.80-1.41 | 0.675 | |
| Arrhythmia other than atrial fibrillation | 1.41 | 0.95-2.09 | 0.085 | 1.19 | 0.79-1.80 | 0.407 | |
| Bleeding-related reoperation | 2.24 | 1.05-4.75 | 0.036 | 1.21 | 0.50-2.93 | 0.669 | |
RBC, red blood cell; MACCE, major adverse cardiovascular and cerebral event.