Published Online: December 24, 2012. doi:10.1001/jamainternmed.2013.1579
Author Contributions: Dr Herzog had full access to all the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis. The analysis, interpretation, and reporting of these data are the responsibility of the authors. Study concept and design: Herzog. Acquisition of data: Herzog. Analysis and interpretation of data: Shroff, Solid, and Herzog. Drafting of the manuscript: Shroff and Herzog. Critical revision of the manuscript for important intellectual content: Shroff, Solid, and Herzog. Statistical analysis: Solid. Obtained funding: Herzog. Administrative, technical, and material support: Herzog. Study supervision: Herzog.
Conflict of Interest Disclosures: Dr Herzog has ownership interest in Johnson & Johnson.
Funding/Support: This study was supported by a research contract with Ortho-McNeil-Janssen, Johnson & Johnson.
Role of the Sponsors: Before submission for peer review, the manuscript was reviewed by the sponsor. Comments were sent to the authors, who are solely responsible for the final version.
Additional Contributions: Chronic Disease Research Group colleague Nan Booth, MSW, MPH, ELS, assisted with manuscript editing.