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| Post operation factors | Mean and St deviation | Regression | Relative Risk | p value | |
|---|---|---|---|---|---|
| Delirious | Non delirious | ||||
| Drainage in firs 24 hr (cc) | 466 ± 433.5 | 335 ± 237.5 | 0.001 | 0.999 | 0.050 |
| Connection to ventilator (hr) | 11.25 ± 5.65 | 7.70 ± 2.53 | 0.073 | 1.075 | 0.001 |
