Regression on monthly admissions by season, injury class, and year
| Coefficient | SE | t | p Value | 95% CI | |
| Season (vs Winter)* | |||||
| Spring | 6.7 | 4.4 | 1.5 | 0.129 | −2.0 to 15.4 |
| Summer | 5.6 | 4.4 | 1.3 | 0.205 | −3.1 to 14.3 |
| Fall | 2.6 | 4.4 | 0.6 | 0.562 | −6.2 to 11.3 |
| Injury class (vs Penetrating) | |||||
| Blunt—all seasons | 87.2 | 4.4 | 19.8 | <0.001 | 78.5 to 95.9 |
| Season/Class (vs Winter/Blunt) | |||||
| Spring/Blunt | 5.2 | 6.2 | 0.8 | 0.403 | −7.1 to 17.5 |
| Summer/Blunt | 22.7 | 6.2 | 3.7 | <0.001 | 10.4 to 35.0 |
| Fall/Blunt | 21.1 | 6.2 | 3.4 | 0.001 | 8.7 to 33.4 |
| Year (vs 2013) | |||||
| 2010 | 14.8 | 3.8 | 3.9 | <0.001 | 7.3 to 22.4 |
| 2011 | 14.3 | 3.8 | 3.7 | <0.001 | 6.7 to 21.8 |
| 2012 | 6.7 | 3.8 | 1.8 | 0.083 | −0.9 to 14.2 |
| 2014 | 7.4 | 3.8 | 2.0 | 0.054 | −0.1 to 15.0 |
| 2015 | 12.6 | 3.8 | 3.3 | 0.001 | 5.0 to 20.1 |
*Total admissions.