Table IV.
Multivariate analysis for independent association with 30-day mortality and length of stay, all patients
| Pre-operative Variable* | 30-day mortality † | Length of Stay ‡ | ||
|---|---|---|---|---|
| P | OR (95% CI) | P | B (95% CI)(days) | |
| Traumatic Etiology | ns | ns | ns | ns |
| Burn Etiology | − | − | <.001 | 15.8 (8.4, 23.2) |
| Malignant Etiology | ns | ns | ns | ns |
| Current Smoker | ns | ns | − | − |
| Fully Independent | ns | ns | ns | ns |
| Partially Dependent | ns | ns | ns | ns |
| Congestive Heart Failure | ns | ns | − | − |
| Septic Shock | .02 | 5.1 (1.2, 20.2) | − | − |
| Platelets < 250 ×106/mL | <.001 | 6.1 (2.3, 19) | − | − |
| INR > 1.3 | ns | ns | − | − |
| WBC > 12 ×106/mL | − | − | <.001 | 6.2 (2.7, 9.7) |
| Guillotine Amputation | ns | ns | <.001 | 7.6 (3.3, 12) |
| Steroid Use | ns | ns | − | − |
INR, international normalized ratio; WBC, white blood cells; OR, odds ratio; CI, confidence interval; ns, not significant
*
Continuous variables have been dichotomized;
†
n = 260, multivariate stepwise logistic regression; constant = 3.5, Chi-square = 21.1, r2 = .13, P < .001;
‡
n = 225 patients, multivariate stepwise linear regression; constant = 5.6 days, r2 = 0.19, F = 17.7, P < .001