Author Contributions: Dr Jacobsen 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: Jacobsen.
Acquisition of data: Jacobsen, Shi.
Analysis and interpretation of data: Jacobsen, Cheetham, Haque, Shi, Loo.
Drafting of the manuscript: Jacobsen,Haque, Shi.
Critical revision of the manuscript for important intellectual content: Cheetham, Haque, Loo.
Statistical analysis: Jacobsen, Haque,Shi.
Administrative, technical, or material support: Jacobsen, Loo.
Study supervision: Jacobsen.
Financial Disclosures: Dr Jacobsen reported receiving research funding from and serving as an unpaid consultant for Merck Research Laboratories. Dr Cheetham reported affiliations with Allergan through family. No other disclosures were reported.
Funding/Support: This study was supported through the Kaiser Foundation Community Benefit fund and the Southern California Permanente Medical Group.
Role of the Sponsors: The Kaiser Foundation Community Benefit fund and Southern California Permanente Medical Group had no role in the design and conduct of the study; the collection,management, analysis, and interpretation of the data; or the preparation,review, or approval of the manuscript.
Additional Contributions: We thank Bianca Cheung, BS, Kaiser Permanente Southern California, for her assistance in the preparation of the manuscript. Ms Cheung received no compensation for her contributions.