Author Contributions: Dr Dekker 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: Jager, van Dijk, Tomas, Rosendaal, Dekker.
Acquisition of data: Jager, van Dijk, Ansell, Collart, Finne, Heaf.
Analysis and interpretation of data: de Jager, Grootendorst, Jager, van Dijk, Tomas, Ansell, Finne, Heaf, De Meester, Wetzels, Dekker.
Drafting of the manuscript: de Jager, Grootendorst, Jager, Ansell, Heaf, Dekker.
Critical revision of the manuscript for important intellectual content: de Jager, Grootendorst, Jager, van Dijk, Tomas, Collart, Finne, Heaf, De Meester, Wetzels, Rosendaal, Dekker.
Statistical analysis: de Jager, Grootendorst, van Dijk, Tomas, Rosendaal, Dekker.
Obtained funding: Ansell.
Administrative, technical, or material support: Grootendorst, Ansell.
Study supervision: Grootendorst, Jager, Ansell, Dekker.
Financial Disclosures: None reported.
Funding/Support: The ERA-EDTA Registry is funded by the European Renal Association-European Dialysis and Transplant Association (ERA-EDTA).
Role of the Sponsor: Through its registry, the ERA-EDTA participated in the design and conduct of the study; the collection, management, analysis, and interpretation of the data; and the preparation of the manuscript but had no influence or financial interest in the results and no role in the review or approval of the manuscript.
Additional Contributions: We thank the patients and staff of all dialysis and transplant units who have contributed data via their national and regional renal registries. Furthermore, we gratefully acknowledge the following registries and persons for their participation in the data collection: P. Castro (Andalusian Renal Registry); R. Kramar (Austrian Dialysis and Transplant Registry [OEDTR]); E. Arcos, J. Comas, R. Deulofeu, and J. Twose (Catalan Transplant Organisation [OCATT]); Á. Magaz, J. Aranzabal, I. Lampreabe, and J. Arrieta (Basque Renal registry); Ir. H. Augustijn and J. M. Billiouw (Dutch-speaking Belgian Renal Registry–NBVN); C. Grönhagen-Riska (Finnish Registry for Kidney Diseases); A. Limido (Italian Renal Registry); F. T. de Charro (Dutch Renal Registry [RENINE]); T. Leivestad (Norwegian Renal Registry); and S. Schön (Swedish Renal Registry).