Author Contributions: Dr Gasink 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: Gasink, Blumberg, Localio, Desai, Israni, Lautenbach.
Acquisition of data: Gasink, Desai, Israni.
Analysis and interpretation of data: Gasink, Blumberg, Localio, Desai, Israni, Lautenbach.
Drafting of the manuscript: Gasink, Localio, Lautenbach.
Critical revision of the manuscript for important intellectual content: Gasink, Blumberg, Localio, Desai, Israni, Lautenbach.
Statistical analysis: Gasink, Localio, Lautenbach.
Obtained funding: Gasink, Desai.
Administrative, technical, or material support: Gasink, Israni.
Study supervision: Blumberg, Localio, Desai, Israni, Lautenbach.
Financial Disclosures: None reported.
Funding/Support: Internal funds provided by Division of Cardiology at the University of Pennsylvania (Dr Desai) were used to obtain data from the Scientific Registry of Transplant Recipients (SRTR).
Role of the Sponsor: The SRTR had no role in the design and conduct of the study; in the collection, analysis, and interpretation of the data; or in the preparation, review, or approval of the manuscript.
Disclaimer: The interpretation and reporting of these data are the responsibility of the author(s) and in no way should be seen as an official policy of or interpretation by the SRTR or the US government.
Acknowledgment: The data reported here have been supplied by the University Renal Research and Education Association (URREA) as the contractor for the SRTR.