Table 5. Predictors of hospital LOS.
| Characteristic | No. of patients | Mean LOS (d) | t-test ( p -value) |
Multiple linear regression ( p -value) |
|---|---|---|---|---|
| Age | ||||
| < 65 | 76 | 6.1 | 0.25 | |
| < 65 | 30 | 7.3 | ||
| Sex | ||||
| Male | 61 | 6.8 | 9.86 | |
| Female | 45 | 5.9 | ||
| CCI | ||||
| 0 | 71 | 6.4 | 0.46 | |
| < 1 | 35 | 6.5 | ||
| Histopathology | ||||
| Squamous cell carcinoma | 29 | 4.7 | 0.01 | 0.24 |
| Olfactory neuroblastoma | 24 | 6.9 | ||
| Adenocarcinoma | 18 | 6.8 | ||
| Malignant melanoma | 9 | 5.4 | ||
| Adenoid cystic carcinoma | 8 | 5.5 | ||
| Mucoepidermoid carcinoma | 4 | 17.8 | ||
| Other | 14 | 6.8 | ||
| Recurrent | ||||
| No | 86 | 6.3 | 0.86 | |
| Yes | 20 | 6.9 | ||
| Orbital | ||||
| No | 87 | 6.2 | 0.20 | |
| Yes | 19 | 7.4 | ||
| Dural | ||||
| No | 76 | 6.2 | 0.51 | |
| Yes | 30 | 7.1 | ||
| Brain | ||||
| No | 101 | 6.5 | 0.53 | |
| Yes | 5 | 5.4 | ||
| Palate | ||||
| No | 94 | 6.0 | 0.11 | |
| Yes | 12 | 9.8 | ||
| Radiotherapy | ||||
| None | 21 | 5.9 | 0.59 | |
| Preoperative | 42 | 6.8 | ||
| Chemotherapy | ||||
| None | 90 | 6.6 | 0.28 | |
| Preoperative | 14 | 5.5 | ||
| Approach | ||||
| Open/Combined | 91 | 7.4 | 0.35 | 0.68 |
| Endoscopic | 15 | 5.7 | ||
| Local flap | ||||
| No | 96 | 6.7 | 0.91 | |
| Yes | 10 | 3.7 | ||
| Regional flap | ||||
| No | 78 | 5.7 | <0.01 | 0.23 |
| Yes | 28 | 8.4 | ||
| Free flap | ||||
| No | 87 | 5.6 | 0.001 | 0.001 |
| Yes | 19 | 10.4 | ||
| Neck dissection | ||||
| No | 93 | 5.9 | 0.08 | |
| Yes | 13 | 10.0 | ||
| Orbital exenteration | ||||
| No | 100 | 6.3 | 0.53 | |
| Yes | 6 | 8.7 | ||
| Complication | ||||
| No | 93 | 5.6 | <0.001 | <0.001 |
| Yes | 13 | 12.5 | ||
| CSF leak | ||||
| No | 103 | 6.4 | 0.04 | |
| Yes | 3 | 8.0 | ||
| ICU stay | ||||
| No | 63 | 5.5 | <0.01 | 0.01 |
| Yes | 43 | 7.7 |
Abbreviations: CCI, Charlson comorbidity index; CSF, cerebrospinal fluid; ICU, intensive care unit; LOS, length of stay.