TABLE 4—

Principal Diagnosis Among Diabetes Patients at Readmission,^aby Payer and Race/Ethnicity: Healthcare Cost and Utilization Project, 1999

	Private Insurance, % (Age = 18–64)			Medicaid, % (Age = 18–64)			Medicare, % (Age ≥ 65)
Principal Diagnosis	Whiteb	Black	Hispanic	Whiteb	Black	Hispanic	Whiteb	Black	Hispanic
Diabetes acute complications	15.2	18.9*	12.4*	20.7	22.3	17.4*	5.2	8.1*	6.5*
Lower extremity disease	18.0	17.5	17.9	18.5	17.2	17.6	11.2	13.3*	14.2*
Renal disease	5.0	5.6	8.2*	6.6	6.9	9.5*	7.2	8.2*	8.9*
Congestive heart failure	10.7	14.9*	9.8	14.7	18.7*	16.0	25.9	23.9*	23.2*
Ischemic heart disease	24.8	14.0*	23.3	15.8	8.8*	12.9*	18.6	11.6*	15.9*
Cerebrovascular disease	5.6	5.7	6.4	3.3	3.4	3.9	8.6	8.2	7.2*

Note. Data are from State Inpatient Databases for 5 states (California, Missouri, New York, Tennessee, and Virginia) of the Healthcare Cost and Utilization Project, Agency for Healthcare Research and Quality.

^aReadmissions were captured within 180 days after discharge from the index admission.

^bWhite is the reference group for comparison and testing of statistical significance.

* P < .05, by the Dunnett t test that controls for type I error.