Systemic disease | Group comparison: postinjury versus preinjury interaction | Ratio and 95% CI | p Value |
---|---|---|---|
Number of admissions | Mild head injury | 1.21 (1.07 to 1.37) | 0.0021 |
Other injury control | 1.23 (1.07 to 1.41) | 0.0031 | |
Total length of stay (days) | Mild head injury | 2.25 (1.82 to 2.79) | <0.0001 |
Other injury control | 5.67 (4.48 to 7.17) | <0.0001 |