Table 5.
Variable | Test Performed | P Value | Odds Ratio (95% Conf. Int.) |
---|---|---|---|
Inpatient Status | Fisher’s Exact Test | 0.17 | Inpatient: 1.745 (0.844 – 3.610) |
Sex | Fisher’s Exact Test | 0.064 | Male: 2.031 (0.987 – 4.178) |
Type (tumor, vascular, functional, congenital, autoimmune, or infectious) |
Chi-Square | 0.99 | Tumor (against all others): 1.232 (0.569 – 2.668) Vascular (against all others): 0.943 (0.375 – 2.371) Functional (against all others): 0.734 (0.215 – 2.506) Congenital (against all others): 0.925 (0.116 – 7.340) |
Supra- vs. Infra-tentorial | Fisher’s Exact Test | 1.00 | Supratentorial: 1.076 (0.469 – 2.467) |
Anesthesia (General vs. Awake) | Fisher’s Exact Test | 1.00 | General: 1.175 (0.149 – 9.275) |
Re-do cases | Fisher’s Exact Test | 0.61 | Re-do: 1.261 (0.498 – 3.195) |
ASA Status | Chi-Square | 0.0008 | Classes 3 & 4 (against 1 & 2): 4.636 (2.083 – 10.318) |
Diabetes | Fisher’s Exact Test | 0.0014 | Diabetes: 4.545 (1.927 – 10.753) |
Active tobacco smoking | Fisher’s Exact Test | 1.00 | Smoker: 0.800 (0.270 – 2.365) |
OR blood products | Fisher’s Exact Test | 0.0019 | OR blood product use: 4.000 (1.764 – 9.091) |
ICU stay over past 12-months | Fisher’s Exact Test | 1.00 | Prior ICU stay: 1.040 (0.239 – 3.096) |
Age | Wilcoxon Rank-Sum Test | 0.060 | Per year of age: 1.026 (1.002 – 1.051) |
EBL | Wilcoxon Rank-Sum Test | 0.015 | Per ml of blood loss: 1.001 (1.000 – 1.002) |
BMI | Wilcoxon Rank-Sum Test | 0.35 | Per integer increase in BMI: 1.067 (1.013 – 1.123) |
Surgery length | Wilcoxon Rank-Sum Test | 0.0066 | Per minute of surgery time: 1.003 (1.001 – 1.005) |
Tumor Volume | Wilcoxon Rank-Sum Test | 0.44 | Per CC of tumor volume: 0.998 (0.981 – 1.016) |