Table 2.

Healthcare Utilization in the 6 Months After Discharge, Adjusted^*

Type of Utilization	Internal Control	Intervention	Difference	P value
	(n = 321)	(n = 321)
Emergency department visits per 1000 beneficiaries	495 (1,512)	439 (1,096)	56 (1,321)	0.55
Observation stays per 1000 beneficiaries	140 (407)	87 (325)	53 (368)	0.07
6-month readmissions per 1,000 beneficiaries	931 (1,383)	651 (1,153)	280 (1,273)	0.01

^*All data are presented as mean (SD). Control variables included year, age, sex, race, site of index hospitalization, dual-eligible status, risk severity index, and pre-existing conditions and comorbidities based on the Medicare HCC risk adjustment model