Study concept and design: Lund, Dahlström, Edner, Friberg.
Acquisition, analysis, or interpretation of data: Lund, Benson, Dahlström, Edner, Friberg.
Drafting of the manuscript: Lund.
Critical revision of the manuscript for important intellectual content: Benson, Dahlström, Edner, Friberg.
Statistical analysis: Benson, Friberg.
Obtained funding: Lund, Dahlström.
Administrative, technical, or material support: Lund, Dahlström, Edner.
Study supervision: Lund.
Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Dr Lund reported that he has received research grants to his institution, served on the speakers bureau or received consulting fees from AstraZeneca, Novartis, Vifor Pharma, and Boston Scientific. Dr Dahlström reports that he has served on the speakers bureau or received consulting fees from Novartis and Vifor Pharma. No other disclosures 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 was supported in part by grants 2013-23897-104604-23 from the Swedish Research Council, 20080409 and 20100419 from the Swedish Heart Lung Foundation, and 20090556 and 20110120 from the Sockholm County Council to Dr Lund’s institution.
Role of the Funder/Sponsor: The funders had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Additional Contributions: We thank all local center study personnel for data collection and entry and Eva Wallgren, BS, Department of Medicine, Karolinska Institutet, for assistance with figure formatting, who was not compensated for her contributions.