Table 5:

Mechanism of Injury Criteria’s Individual Prediction of Trauma Center Need

Mechanism of Injury	Criteria	Trauma Center NOT Needed	NEEDED a Trauma Center	Over and Under-Triage
Falls from a Height*** (n=1,219; 19 cases were missing age data)	>10 feet from height	91	4	8% Over-triage 56% Under-triage +LR 5.9 (95%CI 2.8–12.6)
	≤10 feet from height	1119	5
	Age-Adjusted** High Fall from height	144	4	12% Over-triage 56% Under-triage +LR 3.7 (95%CI 1.7–7.8)
	Age-Adjusted Low Fall from height	1047	5
Falls from a Height OR Standing (n=2,176; 19 cases were missing age data)	>10 feet from height	91	4	4% Over-triage 69% Under-triage +LR 7.3 (95%CI 3.2–16.9)
	<=10 feet from height	2072	9
	Age-Adjusted** High Fall from height	145	4	7% Over-triage 69% Under-triage +LR 4.6 (95%CI 2.0–10.4)
	Age-Adjusted Low Fall from height	1999	9
Motor Vehicle Crash (n=2,246)	Ejected	41	0	N/A none of those ejected needed a trauma center
	Not Ejected****	2,185	20
	Intrusion >12 at seat or >18 elsewhere	31	0	N/A none of those who meet the intrusion criteria needed a trauma center
	Intrusion <=12 at seat and <=18 elsewhere No Intrusion	2,195	20
	Death of another passenger	30	2	1 % Over-triage 90% Under-triage +LR 7.42; (95%CI: 1.9–29.0).
	No death of a passenger****	2,196	18
	No restraint use	492	3	22% Over-triage 85% Under-triage +LR 0.7 (95%CI 0.24–1.93)
	Restraint use****	1734	17
	Roll over	287	2	13% Over-triage 90% Under-triage +LR 0.78 (95%CI 0.21–2.90)
	No roll over****	1,939	18
	Prolonged extrication	34	2	1.5% Over-triage 90% Under-triage +LR 6.55 (95%CI1.69–25.42)
	No prolonged extrication****	2,192	18
Auto vs. Pedestrian of Bicyclist (n=560)	Patient thrown	196	4	36% Over-triage 60% Under-triage +LR 1.12 (95% CI 0.52–2.42)
	Patient not thrown****	354	6
	Patient run over	61	3	11 % Over-triage 70% Under-triage +LR 2.7(95%CI 1.02–7.18)
	Patient not run over****	489	7
	Significant Impact (>20 mph)	166	7	30% Over-triage 30% Under-triage +LR 2.32(95%CI 1.52–3.55)
	No significant Impact (<20mph)****	384	3

^*Excludes 634 cases where fall height was not reported.

^**Age-Adjusted Fall Height: ≤ 3 years fall > 6 feet; 3–8 years fall > 8 feet; ≥ 8 years fall > 10 feet; +LR: Positive Likelihood Ratio

^***Excludes 86 cases where fall height was not reported.

^****Missing or unknown values were considered “no” for these responses.