About the Authors

Mark Lambie

Affiliation Institute of Applied Clinical Research, Keele University, Stoke on Trent, United Kingdom

James Chess

Affiliations Institute of Nephrology, Cardiff University School of Medicine, Heath Park, Cardiff, United Kingdom, Renal Unit, Morriston Hospital, Swansea, United Kingdom

Jun-Young Do

Affiliation Division of Nephrology, Yeungnam University Hospital, Daegu, South Korea

Hyunjin Noh

Affiliation Hyonam Kidney Laboratory, Soon Chun Hyang University, Seoul, South Korea

Hi-Bahl Lee

Affiliation Hyonam Kidney Laboratory, Soon Chun Hyang University, Seoul, South Korea

Yong-Lim Kim

Affiliation Division of Nephrology and Clinical Research Center for ESRD in Korea, Kyungpook National University Hospital, Daegu, South Korea

Angela Summers

Affiliation Manchester Institute of Nephrology and Transplantation, Manchester Royal Infirmary, Manchester, United Kingdom

Paul Ford Williams

Affiliation Ipswich Hospital NHS Trust Ipswich Hospital, Heath Road, Ipswich, United Kingdom

Sara Davison

Affiliation Division of Nephrology and Immunology, University of Alberta, Edmonton, Canada

Marc Dorval

Affiliation Division of Nephrology, Dr. Georges-L.-Dumont University Hospital Centre, Moncton, New Brunswick, Canada

Nick Topley

Contributed equally to this work with: Nick Topley, Simon John Davies

simondavies1@compuserve.com (SJD); topley@cf.ac.uk (NT)

Affiliation Institute of Nephrology, Cardiff University School of Medicine, Heath Park, Cardiff, United Kingdom

Simon John Davies

Contributed equally to this work with: Nick Topley, Simon John Davies

simondavies1@compuserve.com (SJD); topley@cf.ac.uk (NT)

Affiliation Institute of Applied Clinical Research, Keele University, Stoke on Trent, United Kingdom

on behalf of Global Fluid Study Investigators

Members of the Global Fluid Study Investigators can be found in the Acknowledgments.

Competing Interests

S. Davison, M. Dorval, P. Williams, H. Noh, H-B. Lee, J-Y. Do, Y-L. Kim and J. Chess have no competing interests to declare. M. Lambie currently receives research funding from Baxter Healthcare. S. J. Davies currently receives research funding and honoraria from Baxter Healthcare and Fresenius AG. N. Topley has in the past received honoraria and speaker fees from Baxter Healthcare and Fresenius AG. For this specific study infrastructure support for the establishment of the GLOBAL fluid study was provided as unrestricted educational grants from Baxter Healthcare Renal Division. There are no patents, products in development or marketed products to declare. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials, as detailed online in the guide for authors.

Author Contributions

Conceived and designed the experiments: NT SJD. Performed the experiments: NT. Analyzed the data: ML. Wrote the paper: ML SJD NT SD. Collected the data: JC J-YD HN H-BL Y-LK AS PW SD MD ML SJD NT.