Author Contributions: Dr Kuklina 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: Kuklina, Yoon, Keenan.
Acquisition of data: Kuklina.
Analysis and interpretation of data: Kuklina, Yoon, Keenan.
Drafting of the manuscript: Kuklina.
Critical revision of the manuscript for important intellectual content: Kuklina, Yoon, Keenan.
Statistical analysis: Kuklina.
Administrative, technical, or material support: Kuklina.
Study supervision: Yoon, Keenan.
Financial Disclosures: None reported.
Disclaimer: The findings and conclusions in this article are those of the authors and do not necessarily represent official views of the Centers for Disease Control and Prevention.
Additional Contributions: Darwin Labarthe, MD, MPH, PhD, director of the Division for Heart Disease and Stroke Prevention, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, provided insightful and critical review of the manuscript.