Author Contributions: Ms Wassel had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Ix, Kanaya, Vittinghoff, Cummings, Shlipak.
Acquisition of data: Ix, Johnson, Cauley, Harris, Shlipak.
Analysis and interpretation of data: Ix, Wassel, Kanaya, Vittinghoff, Johnson, Koster, Shlipak.
Drafting of the manuscript: Ix.
Critical revision of the manuscript for important intellectual content: Ix, Wassel, Kanaya, Vittinghoff, Johnson, Koster, Cauley, Harris, Cummings, Shlipak.
Statistical analysis: Wassel, Vittinghoff.
Obtained funding: Ix, Johnson, Cauley, Harris, Cummings.
Financial Disclosures: None reported.
Funding/Support: This study was supported by an ADA-ASP Young Investigator Innovation Award in Geriatric Endocrinology sponsored by the Atlantic Philanthropies, American Diabetes Association, John A. Hartford Foundation, and Association of Subspecialty Professors (J.H.I.); an American Heart Association Fellow to Faculty Transition Award (J.H.I.); and contracts N01-AG-6-2101, N01-AG-6-2103, and N01-AG-6-2106 from the National Institute on Aging. The research was also supported in part by the Intramural Research Program of the National Institutes of Health.
Role of the Sponsors: The funding sources played no role in the design and conduct of the study; collection, management, analysis, or interpretation of the data, nor in the preparation of the manuscript. The National Institute on Aging reviewed and approved this manuscript prior to submission.
Additional Contributions: We thank the other investigators, the staff, and the participants of the Health ABC Study for their valuable contributions and Frances A. Tylavsky, DrPH, Department of Preventive Medicine, University of Tennessee Health Science Center, Memphis, for her critical review of the manuscript.
We also thank the following Health ABC core investigators: Anne B. Newman, MD, MPH, and Piera Kost, University of Pittsburgh, Pittsburgh, Pennsylvania; Suzanne Satterfield, MD, DrPH, and Susan Thomas, University of Tennessee, Memphis; Stephen B. Kritchevsky, PhD, Wake Forest University, Winston-Salem, North Carolina; Michael C. Nevitt, PhD, and Susan M. Rubin, MPH, University of California, San Francisco; and Melissa E. Garcia, MPH, National Institute on Aging, Bethesda, Maryland.