Table 3.
Results of the multivariable logistic model. The Hosmer-Lemeshow test resulted in a p-value of .94 indicating the model fits the data well.
| p-Value | Odds Ratio (95% CI) | |||
|---|---|---|---|---|
| Age | ||||
| <75 | - | - | ||
| >=75 | .02 | 1.72 (1.09, 2.73) | ||
|
| ||||
| Gender | ||||
| Male | - | - | ||
| Female | <.01 | 1.88 (1.18, 3.03) | ||
|
| ||||
| History of CNS Disorder | ||||
| No | - | - | ||
| Yes | <.01 | 1.94 (1.24, 3.06) | ||
|
| ||||
| History of Chronic Narcotic Use | ||||
| Yes | - | - | ||
| No | .94 | 1.02 (.61, 1.70) | ||
|
| ||||
| History of Alcohol Abuse | ||||
| Yes | - | - | ||
| No | .65 | 1.11 (.71, 1.73) | ||
|
| ||||
| Preoperative TICS score | ||||
| >=35 | - | - | ||
| <35 | <.01 | 2.07 (1.22, 3.61) | ||
|
| ||||
| Preoperative Pain Score | ||||
| 0 – 4 | - | - | ||
| 4+ | <.01 | 1.52 (.88, 2.61) | ||
|
| ||||
| Preoperative Hemoglobin | ||||
| >=13 mg/DL | - | - | ||
| <13 mg/DL | .33 | 1.26 (.79, 2.01) | ||
|
| ||||
| Surgery Risk | ||||
| 1–2 | - | - | ||
| 3 | .13 | 1.66 (.85, 3.21) | ||
|
| ||||
| ASA Class | ||||
| 1 or 2 | - | - | ||
| 3 or 4 | .75 | 1.11 (.68, 1.70) | ||
|
| ||||
| Anesthesia Duration | ||||
| <=3 hrs | - | - | ||
| >3 hrs | .72 | 1.11 (.63, 1.99) | ||
|
| ||||
| Blood Loss (per 500) | .18 | .92 (.79, 1.03) | ||
|
| ||||
| Blood Transfusion | ||||
| 0 | - | - | ||
| <1000 ml | .70 | 1.12 (.63, 2.00) | ||
| >=1000 ml | .01 | 3.68 (1.32, 10.94) | ||