Table 3.
Results of a point-biserial correlation test between delirium and continuous variables (n = 153)
| Continuous variables | point-biserial correlation | p value |
|---|---|---|
| Age | −0.111 | 0.173 |
| Comorbidity | 0.040 | 0.623 |
| APACHE II score | 0.439 | <0.01 |
| SOFA score | 0.354 | <0.01 |
| Sedation | 0.193 | 0.017 |
| Bilirubin | 0.067 | 0.407 |
| Creatinine | 0.198 | 0.014 |
Continuous variable N pbis Mean (SD) p value. Age (years) 245 0.22 58.0 (10.5) < 0.05. Aortic cross clamp duration (minutes) 238 0.11 60.8 (27) > 0.05. Cardiopulmonary bypass pump duration (minutes) 238 0.07 96.7(33.9) > 0.05. Intraoperative crystalloids (mL) 245 0.02 2042.8 (241.9) > 0.05. Intraoperative blood/products (mL) 245 0.08 71.8 (305.7) > 0.05. Duration of surgery (minutes) 245 0.14 257.4 (63.6) < 0.05.