Published Online: August 30, 2011. doi:10.1001/jama.2011.1246
Author Contributions: Dr Ärnlöv 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: E. Jobs, Ärnlöv.
Acquisition of data: E. Jobs, Risérus, Larsson, Lind, Ärnlöv.
Analysis and interpretation of data: E. Jobs, Ingelsson, Risérus, Sundström, Larsson, Ärnlöv.
Drafting of the manuscript: E. Jobs, Ärnlöv.
Critical revision of the manuscript for important intellectual content: Ingelsson, Risérus, Nerpin, M. Jobs, Sundström, Basu, Larsson, Lind.
Statistical analysis: E. Jobs, Ärnlöv.
Obtained funding: E. Jobs, Ärnlöv.
Administrative, technical, or material support: E. Jobs, Nerpin, M. Jobs, Basu, Larsson.
Study supervision: Ingelsson, Risérus, Lind, Ärnlöv.
Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest and none were reported.
Funding/Support: This study was supported by grant 2006-6555 from the Swedish Research Council and by funding from the Swedish Heart-Lung Foundation, the Thuréus Foundation, Dalarna University, and Uppsala University.
Role of the Sponsor: The funding sources had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; and preparation, review, or approval of the manuscript.