Table 1.

Minor and major injury helicopter transports stratified by patient characteristics.

Characteristic	Overall		Minor Injury (AIS< 3)		Severe Injury (AIS ≥ 3)
	Weighted N	Column Percent	Weighted N	Column Percent	Weighted N	Column Percent	P
Total patients	76,090	-	27,673	-	48,418	-
Age, yrs							<0.001
18-35	29,943	39	11,070	40	18,873	39
35-55	27,692	36	10,421	38	17,271	36
55-70	12,769	17	4,406	16	8,363	17
>70	5,686	7	1,776	6	3,911	8
Sex							<0.001
Female	21,256	28	8,255	30	13,001	27
Male	54,814	72	19,413	70	35,401	73
Insurance							<0.001
Private medical	22,855	30	7,895	29	14,960	31
Automotive	7,743	10	2,633	10	5,110	11
Medicare	7,189	9	2,491	9	4,698	10
Medicaid	5,573	7	1,900	7	3,674	8
Uninsured	14,639	19	6,209	22	8,430	17
Other	6,800	9	2,826	10	3,974	8
Injury mechanism							<0.001
Motor vehicle	35,441	47	12,055	44	23,386	49
Fall	8,330	11	3,444	12	4,886	10
Motor/pedal cyclist	10,562	14	3,250	12	7,312	15
Other blunt	12,153	16	4,625	17	7,528	16
Firearm	4,159	5	1,217	4	2,943	6
Other penetrating	2,184	3	1,298	5	887	2
EMS blood pressure							<0.001
sBP ≥ 110 mm Hg	49,517	65	19,871	72	29,645	61
sBP < 110 mm Hg	11,656	15	2,836	10	8,820	18
EMS Glasgow Coma Scale							<0.001
GCS = 15	36,049	47	16,207	59	19,842	41
GCS < 15	26,151	34	6,746	24	19,405	40
Scene location							0.644
Urban	23,539	31	8,838	32	14,701	30
Rural	20,703	27	7,930	29	12,773	26
Total EMS time (min)							0.007
< 30	864	1	340	1	524	1
30-45	9,548	13	3,579	13	5,969	12
45-60	17,111	22	6,745	24	10,366	21
>60	26,373	35	9,218	33	17,155	35
EMS transport time (min)							0.146
< 30	39,906	52	14,841	54	25,066	52
30-45	9,583	13	3,603	13	5,980	12
45-60	1,915	3	657	2	1,258	3
>60	964	1	285	1	679	1

AIS = Abbreviated Injury Scale; sBP = systolic blood pressure