Is the Safety Net Leaking?: Measuring Changes in Quality of Care and Healthcare Utilization for Patients with Diabetes Mellitus before and after Implementation of Cost-Sharing at a Public Hospital : Table 4

Table 4: Utilization by Insurance Type After Policy Change vs. Before Policy Change.
†: Reference Insurance Type = Commercial
‡: Interaction = Insurance Type*Time, listed by interaction coefficient (standard deviation). Negativeinteractions represent a decrease in the outcome variable after the policy change and positive interactions represent an increase in the outcome variable after the policy change relative to the reference group.
§: Significant at level < 0.10

Outcome Variable	Insurance Type†	Interaction‡	p value
Log(Emergency Department visits)	Commercial	n/a	n/a
	Indigent	0.4973 (0.14)	0.0005§
	Medicaid	0.3243 (0.21)	0.1247
	Medicare	0.5698 (0.14)	<.0001§
	Self Pay	0.3331 (0.21)	0.1090
Log(Hospital Admissions)	Commercial	n/a	n/a
	Indigent	0.8161 (0.34)	0.0149§
	Medicaid	0.2199 (0.43)	0.6063
	Medicare	0.6197 (0.32)	0.0539§
	Self Pay	0.6061 (0.49)	0.2159
Log(Hospital Stay Days)	Commercial	n/a	n/a
	Indigent	0.7055 (0.43)	0.0970§
	Medicaid	0.2413 (0.50)	0.6290
	Medicare	0.5090 (0.39)	0.1954
	Self Pay	0.6541 (0.68)	0.3348
Log(Primary Care Visits)	Commercial	n/a	n/a
	Indigent	0.0875 (0.05)	0.0715§
	Medicaid	-0.2797 (0.12)	0.0160§
	Medicare	-0.1501 (0.05)	0.0015§
	Self Pay	-0.2979 (0.10)	0.0039§