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Editor's Correspondence
February 28, 2011

Caution in Generalizing Part D Results to Medicare Population—Reply

Author Affiliations

Author Affiliations: Division of General Internal Medicine, San Francisco General Hospital, University of California, San Francisco (Drs Millett and Bindman); Department of Primary Care and Public Health, Imperial College, London, England (Dr Millett); and Department of Family Medicine, Medical University of South Carolina, Charleston (Drs Everett, Matheson, and Mainous).

Arch Intern Med. 2011;171(4):365-369. doi:10.1001/archinternmed.2011.10

In reply

Briesacher and colleagues highlight that we identified a greater reduction in mean out-of-pocket expenditures (32%) among Medicare beneficiaries participating in the MEPS1 than previous studies (range, 13%-18%).2,3 They suggest that this may be partly owing to the longitudinal study design used, which limits the generalizability of our findings to the elderly Medicare population.