Impact on hospital ranking of basing readmission measures on a composite endpoint of death or readmission versus readmissions alone

Table 1 Distribution of Hospital Adjusted Odds Ratio for Composite Outcome and Readmission

Principle Discharge Diagnosis	No. of Patients	No. of Hospitals	Rate (unadj)	Median Odds Ratio	AOR, Interquartile Range	AOR, Range	Estimated Between Hospital Variance
AMI, CHF, or PNEU
Composite Outcome	344,565	204	10.93	1.37	0.88-1.10	0.48-1.66	0.0316
Readmission	329,120	204	6.75	1.17	0.93-1.07	0.69-1.43	0.0079
Acute Myocardial Infarction
Composite Outcome	75,036	188	11.80	1.22	0.93-1.08	0.59-1.44	0.0128
Readmission	70,677	188	6.36	1.15	0.96-1.03	0.70-1.26	0.0068
Congestive Heart Failure
Composite Outcome	144,338	200	11.31	1.35	0.88-1.11	0.51-1.51	0.0297
Readmission	138,715	200	7.71	1.16	0.94-1.05	0.73-1.37	0.0075
Pneumoniae
Composite Outcome	125,191	204	9.97	1.22	0.91-1.11	0.57-1.48	0.0126
Readmission	119,728	204	5.86	1.18	0.94-1.07	0.74-1.44	0.0088

AOR, adjusted odds ratio, AMI acute myocardial infarction, CHF congestive heart failure, PNEU pneumonia

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