Accepted for Publication: March 25, 2014.
Published Online: June 23, 2014. doi:10.1001/jamainternmed.2014.2362.
Study concept and design: Neuman, Silber, Mehta, Werner.
Acquisition, analysis, or interpretation of data: Neuman, Silber, Magaziner, Passarella, Werner.
Drafting of the manuscript: Neuman, Passarella.
Critical revision of the manuscript for important intellectual content: Neuman, Silber, Magaziner, Mehta, Werner.
Statistical analysis: Neuman, Silber, Passarella, Werner.
Obtained funding: Neuman.
Administrative, technical, or material support: Neuman, Mehta.
Study supervision: Neuman, Magaziner, Mehta, Werner.
Conflict of Interest Disclosure: During the past 3 years, Dr Magaziner has consulted or served on advisory boards for the American Orthopaedic Association, Amgen, Ammonett, Eli Lilly, Glaxo SmithKline, Organext, and Regeneron, and received research funds through contract with the University of Maryland from Eli Lilly. No other disclosures are reported
Funding/Support: Dr Neuman received funding from the National Institute on Aging (grant K08AG043548-02).
Role of the Sponsor: The National Institute on Aging 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.