Accepted for Publication: July 24, 2014.
Published Online: January 5, 2015. doi:10.1001/jamainternmed.2014.5486.
Study concept and design: Waters, Daniels, Bazzoli, Shorr.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Waters, Daniels, Bazzoli, Fareed, Shorr.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Waters, Daniels, Bazzoli, Liu.
Obtained funding: Waters, Daniels, Bazzoli, Dunton, Shorr.
Administrative, technical, or material support: Waters, Dunton, Potter.
Study supervision: Waters, Daniels, Bazzoli, Perencevich, Dunton.
Conflict of Interest Disclosures: None reported.
Funding/Support: Drs Waters, Daniels, Bazzoli, Perencevich, Dunton, Staggs, Fareed, and Shorr and Ms Potter were supported by grant 1R01HS020627-01 from the Agency for Healthcare Research and Quality during the conduct of this study. Drs Waters, Daniels, Dunton, Staggs, and Shorr and Ms Potter were also supported by grant R01 AG033005 from the National Institute on Aging.
Role of the Funder/Sponsor: The funders had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.