Table 2.

Utilization of testing and services before and after enrollment of frequent ED users in a case management program.

	Pre-intervention	Post-intervention	Absolute change	Percent change	P-value
ED visits (1 year)	1685	855	−830	−49.26	<0.0001
Inpatient admissions (1 year)	159	97	−62	−38.99	0.002
Computed tomography	201	119	−82	−40.80	0.0001
Ultrasounds	71	34	−37	−52.11	0.01
Radiographs	384	239	−145	−37.76	<0.0001
ED visits during which blood testing was done	724	386	−338	−46.69	<0.0001

ED, emergency deparment.