Table 6.
De novo emergency group compared with decompensated group — postoperative outcomes
| Outcome | De novo group | Decompensated group | p value |
|---|---|---|---|
| Adverse events per patient, mean ± SD | 0.4 ± 0.8 | 0.6 ± 0.9 | 0.002 |
| Risk of having any adverse events adjusted for age, OR (95% CI) | — | 1.81 (1.04–3.13) | 0.035 |
| Adverse events, no. (%) | |||
| Surgical site infections | 4/584 (0.7) | 4/69 (5.8) | 0.006 |
| Systemic infections including urinary tract infections | 63/586 (10.8) | 13/69 (18.8) | 0.07 |
| Neuropathic pain | 88/586 (15.0) | 11/69 (15.9) | 0.86 |
| Delirium | 52/586 (8.9) | 7/69 (10.1) | 0.82 |
| Dural tear | 50/548 (9.1) | 10/64 (15.6) | 0.12 |
| Pneumonia | 19/586 (3.2) | 6/69 (8.7) | 0.04 |
| Dysphagia | 15/586 (2.6) | 1/69 (1.5) | 0.72 |
| Deep vein thrombosis | 2/83 (2.4) | 0/20 (0.0) | > 0.99 |
| Pulmonary embolism | 3/83 (3.6) | 0/20 (0.0) | 0.61 |
| Neurologic deterioration | 5/83 (6.0) | 1/20 (5.0) | > 0.99 |
| Cord injury | 0/44 (0.0) | 0/15 (0.0) | NA |
| Nerve root injury | 0/44 (0.0) | 0/15 (0.0) | NA |
| CSF leak meningocele | 0/83 (0.0) | 0/20 (0.0) | NA |
| Hematoma | 2/83 (2.4) | 0/20 (0.0) | > 0.99 |
| Wound dehiscence | 3/83 (3.6) | 1/20 (5.0) | > 0.99 |
| Hardware malposition | 1/44 (2.3) | 0/15 (0.0) | > 0.99 |
| Massive blood loss or transfusion | 0/44 (0.0) | 1/15 (6.7) | 0.25 |
CI = confidence interval; CSF = cerebrospinal fluid; NA = not applicable; OR = odds ratio; SD = standard deviation.
Differing denominators indicates missing data for some patients in some categories.