Table 4. Relative Ability of Historical Hospital Rankings Based on Different Quality Measures, to Forecast Future Risk-Adjusted Mortality, for All Hospitals.

Adjusted Odds Ratio for Risk-Adjusted Mortalilty in 2009 (July-December), 1-Star (bottom 20%) versus 3-Star (top 20%) based on July 2005 to June 2008 Hospita l Rankings (95% CI)
Condition	Hospital Volume	Hospital Compare Process Measures	Risk-Adjusted Mortality	Hospital Compare Mortality Measures	Composite Measure
HF	1.19	1.01	1.42	1.38	1.47
	(1.14-1.25)	(0.97-1.06)	(1.35-1.48)	(1.31-1.44)	(1.41-1.54)
AMI	1.38	1.10	1.45	1.39	1.61
	(1.31-1.47)	(1.08-1.12)	(1.37-1.54)	(1.31-1.48)	(1.52-1.71)
PNA	1.17	1.06	1.48	1.42	1.54
	(1.12-1.23)	(1.01-1.11)	(1.41-1.55)	(1.35-1.49)	(1.46-1.61)

Abbreviations: CI is confidence interval, HF is heart failure, AMI is acute myocardial infarction, and PNA is pneumonia.

Note: P-value for difference (between odds ratio for composite measure and odds ratio for individual measures) is <0.05 for all comparisons.