TABLE 1.
Bivariate Comparison of Baseline Demographics and Surgical Characteristics
| Pre-COVID | During-COVID | P-Value | |||
| N | % | N | % | ||
| Total | 60 | – | 57 | – | 0.782 |
| Gender | 28 | 46.7% | 27 | 47.4% | 0.939 |
| ASA | 0.100 | ||||
| 1 | 0 | 0.0% | 0 | 0.0% | |
| 2 | 16 | 26.7% | 24 | 42.1% | |
| 3 | 42 | 70.0% | 33 | 57.9% | |
| 4 | 2 | 3.3% | 0 | 0.0% | |
| 5 | 0 | 0.0% | 0 | 0.0% | |
| Revision | 27 | 45.0% | 26 | 45.6% | 0.877 |
| 3CO | 6 | 10.0% | 11 | 19.3% | 0.154 |
| Mean | SD | Mean | SD | P-Value | |
| Age | 67.5 | 11.8 | 61.4 | 14.5 | 0.015 |
| Levels fused | 7.5 | 2.97 | 9.1 | 3.45 | 0.007 |
| EBL | 1126.5 | 729.6 | 1762.1 | 1424.6 | 0.002 |
3CO indicates three-column osteotomy; ASA, American Society of Anesthesiologists; EBL, estimated blood loss.
Bolded p-values indicate statistical significance.