Table 2.

The number of image studies ordered by the emergency medicine residents before and after the education.

	Before education	After education	Difference
CTs ordered by the residents	442	340	−23.07%
Chest	93	77	−17.20%
Aorta	32	29	−9.37%
Urology	22	10	−54.54%
Abdominal and pelvis	295	224	−24.06%
X-rays ordered by the residents	8745	6932	−20.73%
Abdominal X-ray	5096	4176	−18.05%
Chest X-ray	3649	2756	−24.47%