1. Department of Nephrology, Hospital Universitari Dr Peset, REDinREN, FISABIO, Department of Medicine, Universitat de València, València, Spain
2. European Renal Nutrition (ERN) Working Group of the European Renal Association–European Dialysis Transplant Association (ERA-EDTA)
3. Department of Mathematics, Universidad de Alicante, Alicante, Spain
4. Department of Clinical Analysis, Hospital Universitari Dr Peset, REDinREN, FISABIO, Department of Medicine, Universitat de València, València, Spain
5. Department of Nephrology, Hospital Clínico Universitario, INCLIVA and Department of Medicine, Universitat de València, València, Spain
6. Department of Nephrology, Université de Lyon, UCBL, Carmen, Centre Hospitalier Lyon-Sud, Pierre Bénite, France
7. Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden