The Implications of Regional Variations in Medicare Spending. Part 2: Health Outcomes and Satisfaction with Care

Figure 4. ) cohort. Income figures refer to the average monthly Social Security income of the patients' ZIP codes. Circles
represent the adjusted relative risk for death associated with a 10% increase in the End-of-Life Expenditure Index across
U.S. hospital referral regions; bars represent 95% CIs for the relative risk. *Mid-Atlantic, South Atlantic, and Great Lakes
regions. †Did not change hospital referral region of residence in the 1 to 2 years before index admission. HMO = health maintenance
organization.
Adjusted relative risk for death associated with a 10% increase in Medicare spending overall and among specified subgroups
of the acute myocardial infarction ( MI
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Ann Intern Med
February 18, 2003
vol. 138
no. 4
288-298