Author Contributions: Dr Lund 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: Lund, Dahlström, Edner.
Acquisition of data: Lund.
Analysis and interpretation of data: Lund, Benson, Dahlström, Edner.
Drafting of the manuscript: Lund.
Critical revision of the manuscript for important intellectual content: Lund, Benson, Dahlström, Edner.
Statistical analysis: Lund, Benson.
Obtained funding: Lund.
Administrative, technical, or material support: Lund.
Study supervision: Lund.
Conflict of Interest Disclosures: The authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Dr Lund reported receiving institutional research grants and speaker's and consulting fees from AstraZeneca, Thoratec, and HeartWare. No other disclosures were reported.
Funding/Support: The Swedish Heart Failure Registry is funded by the Swedish National Board of Health and Welfare, the Swedish Association of Local Authorities and Regions, the Swedish Society of Cardiology, and the Swedish Heart-Lung Foundation. This study received no specific funding. Dr Lund was supported by grants 20080409 and 20100419 from the Swedish Heart-Lung Foundation, grants 00556-2009 and 20110120 from the Stockholm County Council, and an unrestricted research grant from AstraZeneca.
Role of the Sponsor: No funding agency had any role in the design and conduct of the study, in the collection, management, analysis, or interpretation of the data, or in the preparation, review, or approval of the manuscript.
Additional Contributions: We thank all local center study personnel for data collection and entry.