Table 3.
Pre-, intra-, and postoperative variables
| Variables | Delirum | n | M | SD | p value |
|---|---|---|---|---|---|
| Preoperative variables | |||||
| Age | No | 157 | 64.0 | 12.8 | 0.005 |
| Yes | 60 | 69.2 | 10.1 | ||
| Hemoglobin (g/dl) | No | 157 | 13.6 | 1.8 | 0.01 |
| Yes | 60 | 13.0 | 1.8 | ||
| Creatinine (μmol/l) | No | 155 | 93.3 | 39.5 | 0.006 |
| Yes | 59 | 116.4 | 81.4 | ||
| Intraoperative variables | |||||
| Duration of anesthesia (min) | No | 157 | 323.3 | 77.3 | 0.08 |
| Yes | 60 | 344.7 | 89.1 | ||
| Duration of surgery (min) | No | 151 | 252.4 | 74.3 | 0.07 |
| Yes | 60 | 274.0 | 88.7 | ||
| Time of bypass (min) | No | 152 | 119.9 | 57.2 | 0.35 |
| Yes | 60 | 128.3 | 63.6 | ||
| NIRS (low) | No | 157 | 69.5 | 8.2 | 0.001 |
| Yes | 60 | 65.4 | 7.6 | ||
| Nor-adrenaline | No | 157 | 2.9 | 2.8 | 0.03 |
| Yes | 60 | 3.8 | 2.4 | ||
| Postoperative variables | |||||
| Mechanical ventilation (min) | No | 157 | 254.4 | 178.8 | 0.004 |
| Yes | 60 | 544.1 | 1200.2 | ||
| Stay on the ICU (days) | No | 157 | 1.9 | 2.5 | 0.01 |
| Yes | 60 | 2.9 | 3.4 | ||
| Stay in hospital (days) | No | 157 | 11.9 | 5.3 | 0.01 |
| Yes | 60 | 14.3 | 8.0 | ||
Abbreviation: M mean, SD standard deviation, n number of patients, min minutes
p < 0.05 is statistically significant