Table 3.
Intraoperative Variables and Postoperative Complications
| Variables (%) | Normal LOS (≤4 Days) (n = 23,159) | Extended LOS (>4 Days) (n = 6802) | P |
|---|---|---|---|
| Intraoperative | |||
| Duraplasty | 55.3 | 59.0 | 0.091 |
| Nerve/cord injury | 0.7 | 6.0 | <0.001 |
| Blood transfusion | 0.5 | 1.4 | 0.020 |
| Postoperative complications | |||
| Cerebral edema | 1.2 | 3.5 | <0.001 |
| Dysphagia | 1.5 | 5.9 | <0.001 |
| Acute postoperative pain | 3.8 | 5.9 | 0.032 |
| Wound complication | 0.1 | 1.8 | <0.001 |
| Sepsis | 0.0 | 1.1 | <0.001 |
| Renal complication | 0.1 | 0.2 | 0.434 |
| Urinary tract infection | 0.8 | 7.2 | <0.001 |
| Acute respiratory complication | 1.0 | 6.3 | <0.001 |
| Cardiac complications | 0.2 | 0.5 | 0.172 |
| Genitourinary complications | 0.1 | 0.2 | 0.434 |
| Deep vein thrombosis | 0.0 | 0.8 | <0.001 |
| Acute posthemorrhagic anemia | 1.4 | 2.5 | 0.031 |
| Central nervous system complication | 0.1 | 1.9 | <0.001 |
| Gastrointestinal complication | 0.1 | 0.4 | 0.111 |
| Any complication | 10.6 | 29.1 | <0.001 |
| Number of complications | <0.001 | ||
| 0 | 89.4 | 70.9 | |
| 1 | 9.5 | 18.7 | |
| >1 | 1.1 | 10.4 | |
LOS, length of hospital stay.