Published Online: July 27, 2015. doi:10.1001/jamainternmed.2015.3565.
Study concept and design: All authors.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: All authors.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: All authors.
Obtained funding: Karaca-Mandic.
Administrative, technical, or material support: Ma, Karaca-Mandic.
Study supervision: Ma, Karaca-Mandic.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was supported by research funding from the University of Minnesota Accounting Research Center (Dr. Ma) and grant K01AG036740 from the National Institute of Aging (Dr Karaca-Mandic).
Role of the Funder/Sponsor: The funding sources 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.