Author Contributions: Drs Goyal and Kosiborod had full access to all the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Goyal, Kosiborod.
Acquisition of the data: Spertus, Kosiborod.
Analysis and interpretation of the data: Goyal, Spertus, Gosch, Venkitachalam, Jones, Van den Berghe, Kosiborod.
Drafting of the manuscript: Goyal.
Critical revision of the manuscript for important intellectual content: Goyal, Spertus, Gosch, Venkitachalam, Jones, Van den Berghe, Kosiborod.
Statistical analysis: Gosch, Jones.
Obtained funding: Spertus, Kosiborod.
Administrative, technical, or material support: Spertus, Kosiborod.
Study supervision: Goyal, Kosiborod.
Conflict of Interest Disclosures: The authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest and none were reported.
Funding/Support: The research for this article was funded by internal funds from Saint Luke's Mid America Heart Institute, Kansas, City, Missouri. The Cerner Corporation facilitated the collection of the deidentified Health Facts data but provided no external funding for this study.
Role of the Sponsors: The Cerner Corporation provided the data but had no role in study funding; conception, design, or conduct of the study; management, analysis, or interpretation of the data; or the preparation, review, or approval of the manuscript.
This article was corrected for wording in figure legends on January 9, 2012.