Background: Previous studies have documented racial disparities in treatment of acute
myocardial infarction (AMI) among Medicare beneficiaries. However, the extent to which
unobserved differences between hospitals explains some of these differences is unknown.
Objective: The objective of this study was to determine whether the observed racial
treatment disparities for AMI narrow when analyses account for differences in where blacks
and whites are hospitalized. Research Design: Retrospective observational cohort study …