. Author manuscript; available in PMC: 2016 Apr 1.

Published in final edited form as: World J Surg. 2015 Apr;39(4):926–933. doi: 10.1007/s00268-014-2899-y

Table 2.

Interventions and resource utilization—phase 1 (n = 798) versus phase 2 (n = 575)

	Phase 1 % (n)	Phase 2 % (n)	p value	OR (95 % CI)
Intubation	6.77 (54)	6.96 (40)	0.89	1.03 (0.67–1.57)
Cervical collar	5.26 (42)	6.96 (40)	0.19	1.35 (0.86–2.10)
Chest X-ray	16.54 (132)	18.78 (108)	0.28	1.17 (0.88–1.54)
Pelvis X-ray	10.4 (83)	13.57 (78)	0.07	1.35 (0.97–1.88)
CT head	22.18 (177)	22.26 (128)	0.97	1.00 (0.78–1.30)
Abdominal US	6.64 (53)	4.35 (25)	0.07	0.64 (0.39–1.04)
Extremity X-ray	43.48 (347)	45.74 (263)	0.41	1.10 (0.88–1.36)
Spine imaging	11.03 (88)	13.74 (79)	0.13	1.29 (0.93–1.78)
Body CT	0.50 (4)	1.04 (6)	0.34	2.09 (0.59–7.45)