Insurance Type | All imaging | p value | Imaging within first 24 hours | p value | CT imaging within first 24 hours | p value |
---|---|---|---|---|---|---|
Base Model (3621)a | ||||||
Commercial | [reference] | [reference] | [reference] | |||
Medicare | 0.85 (0.78–0.93) | <0.001 | 0.78 (0.71–0.86) | <0.001 | 0.74 (0.66–0.82) | <0.001 |
Medicaid | 0.89 (0.81–0.99) | 0.003 | 0.95 (0.85–1.06) | 0.363 | 0.99 (0.87–1.12) | 0.828 |
No Insurance | 0.90 (0.85–0.96) | <0.001 | 0.96 (0.89–1.03) | 0.239 | 1.01 (0.93–1.09) | 0.788 |
Government | 0.81 (0.72–0.90) | <0.001 | 0.83 (0.74–0.94) | 0.003 | 0.85 (0.74–0.97) | 0.019 |
Injury Severity Score > 15 (n = 596)b | ||||||
Commercial | [reference] | -- | [reference] | |||
Medicare | 0.86 (0.71–1.04) | 0.122 | 0.85 (0.68–1.06) | 0.145 | 0.84 (0.69–1.03) | 0.093 |
Medicaid | 0.78 (0.68–0.94) | <0.001 | 0.82 (0.66–1.03) | 0.091 | 0.98 (0.80–1.20) | 0.849 |
No Insurance | 0.80 (0.71–0.91) | <0.001 | 0.84 (0.72–0.97) | 0.016 | 1.02 (0.89–1.16) | 0.785 |
Government | 0.64 (0.51–0.81) | <0.001 | 0.72 (0.55–0.94) | 0.016 | 0.88 (0.69–1.12) | 0.283 |
Injury Severity Score < 15 (n = 3025)b | ||||||
Commercial | [reference] | -- | [reference] | |||
Medicare | 0.82 (0.74–0.91) | 0.001 | 0.75 (0.67–0.84) | <0.001 | 0.71 (0.62–0.81) | <0.001 |
Medicaid | 0.93 (0.82–1.05) | 0.237 | 0.97 (0.84–1.11) | 0.641 | 0.96 (0.82–1.13) | 0.642 |
No Insurance | 0.94 (0.87–1.01) | 0.094 | 0.99 (0.91–1.07) | 0.795 | 1.00 (0.91–1.10) | 0.957 |
Government | 0.84 (0.74–0.95) | 0.007 | 0.85 (0.74–0.97) | 0.021 | 0.83 (0.71–0.98) | 0.027 |
Blunt force mechanism (n = 3058)c | ||||||
Commercial | [reference] | [reference] | [reference] | |||
Medicare | 0.82 (0.76–0.89) | <0.001 | 0.77 (0.70–0.84) | <0.001 | 0.72 (0.65–0.79) | <0.001 |
Medicaid | 0.82 (0.74–0.90) | <0.001 | 0.91 (0.82–1.02) | 0.109 | 0.99 (0.88–1.12) | 0.900 |
No Insurance | 0.88 (0.83–0.94) | <0.001 | 0.94 (0.88–1.01) | 0.085 | 1.01 (0.94–1.09) | 0.795 |
Government | 0.82 (0.74–0.91) | <0.001 | 0.85 (0.76–0.96) | 0.006 | 0.85 (0.75–0.97) | 0.015 |