Perioperative characteristics.
| Characteristic | Total (n = 121) | Non-WC (n = 92) | WC (n = 29) | P Valuea |
| Spinal pathology | ||||
| Degenerative disc disease | 55.3% (67) | 53.3% (49) | 62.1% (18) | 0.405 |
| Degenerative spondylolisthesis | 65.4% (70) | 61.9% (52) | 78.3% (18) | 0.144 |
| Isthmic spondylolisthesis | 24.3% (26) | 28.6% (24) | 8.7% (2) | 0.049 |
| Operative time, min, mean ± SD | 124.5 ± 23.5 | 123.9 ± 23.2 | 126.1 ± 24.9 | 0.663 |
| Estimated blood loss, mL, mean ± SD, mL | 48.5 ± 25.2 | 48.5 ± 24.3 | 48.3 ± 28.3 | 0.962 |
| Length of stay, h, mean ± SD | 29.2 ± 18.7 | 29.4 ± 19.7 | 28.8 ± 15.4 | 0.877 |
| Day of discharge | 0.310 | |||
| POD 0 | 19.0% (23) | 18.5% (17) | 20.7% (6) | |
| POD 1 | 61.2% (74) | 63.0% (58) | 55.1% (16) | |
| POD 2 | 15.7% (19) | 13.0% (12) | 24.1% (7) | |
| POD 3 | 4.1% (5) | 5.5% (5) | 0.0% (0) |
Data provided as % (n) unless otherwise indicated. Boldface indicates statistical significance.
aP value calculated using either χ 2 test or Student’s t test.
POD, postoperative day; WC, workers’ compensation.