Table 2.

Triage criteria evaluated for inclusion in the AMPT score

Criterion	AOR for Survival HEMS vs GEMS	95% CI	q-value*
Age >55	1.17	1.09 – 1.26	0.019
GCS <14	1.13	1.07 – 1.20	0.016
SBP <90	0.91	0.81 – 1.02	0.159
RR <10 or >29	1.23	1.11 – 1.35	0.013
Penetrating injury	1.12	0.97 – 1.29	0.159
Unstable chest	1.22	1.08 – 1.38	0.022
Open skull fracture	1.17	0.99 – 1.38	0.112
≥ 2 proximal long bone fracture	0.99	0.81 – 1.21	0.917
Pelvic fracture	1.04	0.95 – 1.14	0.535
Crush injury	1.22	0.70 – 2.16	0.544
Amputation	1.07	0.73 – 1.57	0.764
Paralysis	1.48	1.11 – 1.97	0.025
Hemo/pneumothorax	1.16	1.07 – 1.25	0.009
Cardiac injury	0.97	0.76 – 1.22	0.835
Multisystem trauma†	1.31	1.07 – 1.60	0.028
PHY + ANA‡	1.27	1.18 – 1.36	0.003

^*the q-value is the false discovery rate corrected p value for multiple comparisons; q-value ≤ 0.05 considered statistically significant

^†3 or more anatomic body regions injured

^‡any 1 physiologic criterion plus any 1 anatomic criterion present from American College of Surgeons Committee on Trauma national field triage guidelines

AMPT, air medical prehospital triage; AOR, adjusted odds ratio; HEMS, helicopter emergency medical services; GEMS, ground emergency medical services; 95%CI, 95% confidence interval; GCS, Glasgow Coma Scale; SBP, systolic blood pressure; RR, respiratory rate