T Ebert1, A R Qureshi1, C Lamina2, J Fotheringham3,4, M Froissart5, K-U Eckardt6, D C Wheeler7, J Floege8, F Kronenberg2, P Stenvinkel1. 1. From the, Division of Renal Medicine, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden. 2. Department of Genetics and Pharmacology, Institute of Genetic Epidemiology, Medical University of Innsbruck, Innsbruck, Austria. 3. Sheffield Kidney Institute, Northern General Hospital, Sheffield, UK. 4. School of Health and Related Research, University of Sheffield, Sheffield, UK. 5. Centre de Recherche Clinique (CRC), Lausanne University Hospital, Lausanne, Switzerland. 6. Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin, Germany. 7. Department of Renal Medicine, University College London, London, UK. 8. Division of Nephrology and Clinical Immunology, RWTH University of Aachen, Aachen, Germany.
Abstract
BACKGROUND: Patients with end-stage kidney disease have an extremely high cardiovascular mortality rate, but there is a paradoxical relationship between lipid profile and survival in haemodialysis patients. To investigate whether inflammation/malnutrition confounds the associations between lipids and mortality, we studied a full lipid profile comprising of five clinically well-established lipid parameters and its associations with mortality in a large, multinational European cohort with a median follow-up >3 years. METHODS: The association between quartiles of total, high-density lipoprotein (HDL), non-HDL, low-density lipoprotein (LDL) cholesterol, as well as triglyceride, levels and the end-points of all-cause, cardiovascular and non-cardiovascular mortality was assessed in a cohort of 5,382 incident, adult haemodialysis patients from >250 Fresenius Medical Care dialysis centres out of 14 participating countries using baseline and time-dependent Cox models. Analyses were fully adjusted and stratified for inflammation/malnutrition status and other patient-level variables. RESULTS: Time-dependent quartiles of total, HDL, non-HDL and LDL cholesterol were inversely associated with the hazard for all-cause, cardiovascular and non-cardiovascular mortality. Compared with the lowest quartile of the respective lipid parameter, hazard ratios of other quartiles were <0.86. Similar, albeit weaker, associations were found with baseline lipid profile and mortality. Neither time-dependent nor baseline associations between lipid profile and mortality were affected by inflammation/malnutrition, statin use or geography. CONCLUSIONS: Baseline and time-dependent lipid profile are inversely associated with mortality in a large, multicentre cohort of incident haemodialysis patients. Inflammation/malnutrition is not a confounder nor effect modificator of the associations between lipid profile and mortality in European haemodialysis patients.
BACKGROUND: Patients with end-stage kidney disease have an extremely high cardiovascular mortality rate, but there is a paradoxical relationship between lipid profile and survival in haemodialysis patients. To investigate whether inflammation/malnutrition confounds the associations between lipids and mortality, we studied a full lipid profile comprising of five clinically well-established lipid parameters and its associations with mortality in a large, multinational European cohort with a median follow-up >3 years. METHODS: The association between quartiles of total, high-density lipoprotein (HDL), non-HDL, low-density lipoprotein (LDL) cholesterol, as well as triglyceride, levels and the end-points of all-cause, cardiovascular and non-cardiovascular mortality was assessed in a cohort of 5,382 incident, adult haemodialysis patients from >250 Fresenius Medical Care dialysis centres out of 14 participating countries using baseline and time-dependent Cox models. Analyses were fully adjusted and stratified for inflammation/malnutrition status and other patient-level variables. RESULTS: Time-dependent quartiles of total, HDL, non-HDL and LDL cholesterol were inversely associated with the hazard for all-cause, cardiovascular and non-cardiovascular mortality. Compared with the lowest quartile of the respective lipid parameter, hazard ratios of other quartiles were <0.86. Similar, albeit weaker, associations were found with baseline lipid profile and mortality. Neither time-dependent nor baseline associations between lipid profile and mortality were affected by inflammation/malnutrition, statin use or geography. CONCLUSIONS: Baseline and time-dependent lipid profile are inversely associated with mortality in a large, multicentre cohort of incident haemodialysis patients. Inflammation/malnutrition is not a confounder nor effect modificator of the associations between lipid profile and mortality in European haemodialysis patients.
Authors: Sam Hobson; Henriette de Loor; Karolina Kublickiene; Joachim Beige; Pieter Evenepoel; Peter Stenvinkel; Thomas Ebert Journal: Toxins (Basel) Date: 2022-06-16 Impact factor: 5.075
Authors: Johannes P Schwaiger; Barbara Kollerits; Inga Steinbrenner; Hansi Weissensteiner; Sebastian Schönherr; Lukas Forer; Fruzsina Kotsis; Claudia Lamina; Markus P Schneider; Ulla T Schultheiss; Christoph Wanner; Anna Köttgen; Kai-Uwe Eckardt; Florian Kronenberg Journal: J Intern Med Date: 2022-01-04 Impact factor: 13.068