Table 4. Association between postoperative factors and postoperative delirium (PODE).
| Variable | PODE (n = 221) | No PODE (n = 691) | P value |
|---|---|---|---|
| ICU stay (days) | 2.95 ± 1.10 | 3.04 ± 1.01 | 0.280 |
| Temperature > 38°C (n, %) | 27 (12.2%) | 84 (12.2%) | 0.981 |
| Sleep disturbance (n, %) | 46 (20.8%) | 33 (4.8%) | <0.001 |
| Mount Fuji sign (n, %) | 57 (25.8%) | 63 (9.1%) | <0.001 |
| HGB (g/L) | 100.73 ± 4.83 | 100.13 ± 4.37 | 0.097 |
| WBC (×109/L) | 10.88 ± 2.04 | 10.69 ± 2.23 | 0.250 |
| Serum Na (mmol/L) | 136.95 ± 2.25 | 136.96 ± 2.44 | 0.950 |
| Serum K (mmol/L) | 3.80 ± 0.31 | 3.76 ± 0.32 | 0.069 |
| BUN (mmol/L) | 3.99 ± 0.31 | 4.01 ± 0.41 | 0.376 |
| CREA (μmol/L) | 81.49 ± 2.63 | 80.26 ± 28.53 | 0.520 |
Values are expressed as mean ± standard deviation unless otherwise specified. ICU, intensive care unit; HGB, hemoglobin; WBC, white blood cell count; BUN, blood urea nitrogen; CREA, creatinine