Table 2.

Overtriage in different criteria groups

CRITERIA GROUP	TOTAL	ISS < 15	ISS > 15	OVERTRIAGE %	95% CI
1 Physiology	664	458	206	69.0%	65.4–72.4
2 Anatomical injury	805	680	125	84.5%	81.8–86.8
3 Mechanism of injury	333	324	9	97.3%	94.9–98.6
4 Patient factors	256	223	33	87.1%	82.4–90.7
5 Did not meet any criteria	450	439	11	97.6%	95.7–98.6