Author Contributions: Dr Zingmond 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: Zingmond, Ko.
Acquisition of data: Zingmond, Ko.
Analysis and interpretation of data: Zingmond,
Drafting of the manuscript: Zingmond.
Critical revision of the manuscript for important
intellectual content: Zingmond, McGory, Ko.
Statistical analysis: Zingmond, McGory.
Obtained funding: Ko.
Administrative, technical, or material support:
Study supervision: Ko.
Financial Disclosures: None reported.
Funding Support: Dr Zingmond is funded by a
Mentored Clinical Scientist Award, grant K08 AG023024-01A1 from the National
Institute on Aging. Dr McGory is funded by the Robert Wood Johnson Clinical
Scholars Program at the University of California Los Angeles.
Role of the Sponsor: The funding sources had
no role in the development or synthesis of these analyses or in the writing
of the manuscript.