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Comparison between grades of injury.
| Grade I | Grade II | Grade III | P value | |
|---|---|---|---|---|
| Gender | ||||
| Male | 5 (35.7%) | 17 (23.0%) | 7 (35.0%) | |
| Female | 9 (64.3%) | 57 (77.0%) | 13 (65.0%) | 0.328 |
| Age (mean) | 46.2 | 44.9 | 54.5 | 0.130 |
| Days to recognition of injury (median) | 2.5 | 3.0 | 2.5 | 0.796 |
| Length of stay (days, mean) | 1.6 | 8.8 | 11.8 | <0.001 |
| Complications | 1 (7.1%) | 8 (10.8%) | 6 (30.0%) | 0.107 |
| Late restenosis | 0 | 17 (23.0%) | 4 (20.0%) | 0.109 |
| Mortality | 0 | 1 (1.4%) | 3 (15.0%) | 0.030 |
| Cost (mean) | $12,457 | $46,481 | $69,368 | <0.001 |
