Regression model of cost of youth with minor to moderate injuries
Parameter estimate | P value | Percentage change to cost | ||
Patient factors | Age | 0.01 | 0.20 | |
Female | 0.08 | 0.86 | ||
Black | −0.04 | 0.41 | ||
Other race | 0.06 | 0.36 | ||
Hispanic* | 0.11 | 0.04 | 11.4 | |
Uninsured | −0.04 | 0.58 | ||
Medicaid | −0.03 | 0.45 | ||
Time* | 0.02 | 0.0002 | 16.1 | |
ICISS | −2.00 | 0.06 | ||
Overtriage* | 0.84 | <0.0001 | 131.8 | |
Nature of injury | Fractures of the skull, neck, or trunk | 0.13 | 0.06 | |
(Reference: other fractures) | Internal injury* | 0.20 | 0.001 | 22.0 |
Open wound | 0.09 | 0.36 | ||
Burns | 0.004 | 0.99 | ||
Other injury* | 0.22 | 0.02 | 24.4 | |
Mechanisms of injury | Cut | −0.26 | 0.10 | |
(Reference: falls) | Fire | 0.08 | 0.78 | |
Firearm* | 0.33 | 0.03 | 38.4 | |
Motor vehicle traffic* | 0.30 | <0.0001 | 35.5 | |
Transport | 0.09 | 0.15 | ||
Natural/environmental | −0.04 | 0.69 | ||
Struck by/against | 0.06 | 0.34 | ||
Other mechanism | −0.09 | 0.50 | ||
Hospital factors | Teaching hospital* | 0.23 | <0.0001 | 25.5 |
(Reference: not for profit) | For-profit hospital | 0.02 | 0.76 | |
Public hospital | −0.05 | 0.43 |
*Statistically significant at the α=0.05 level.
ICISS, ICD-9-CM Injury Severity Score.