Outcomes of patients who underwent adult spinal deformity surgery in July and other months between 2002 and 2011.
| Variable | July | Other months | p-value |
|---|---|---|---|
| Total | 2,023 | 25,771 | |
| Length of stay (average days) | 7.2 ± 5.4 | 7.3 ± 7.1 | 0.641 |
| Overall complications (%) | 43.1 | 44.9 | 0.468 |
| Major complications (%) | 12.9 | 12.4 | 0.764 |
| Mortality (%) | * | 0.4 | 0.807 |
↵* NIS does not allow publication of values equal to or less than 10.