1 Department of Internal Medicine III, Clinical Division of Nephrology and Dialysis, Medical University of Vienna, Vienna, Austria.
2 Sydney School of Public Health, The University of Sydney, Sydney, Australia.
3 ERA Registry, Amsterdam UMC, University of Amsterdam, Department of Medical Informatics, Amsterdam Public Health research institute, Amsterdam, The Netherlands.
4 Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
5 Department of Epidemiology, Center for Public Health, Medical University of Vienna, Vienna, Austria.