title: Medical Nutrition Therapy for Chronic Kidney Disease Improves Biomarkers and Slows Time to Dialysis.
abstract: OBJECTIVE
  To investigate whether medical nutrition therapy (MNT) provided by a registered dietitian experienced in chronic kidney disease (CKD) slows the progression of disease and improves nutrition-related biomarkers.
  
  
  METHODS
  Retrospective cohort study.
  
  
  METHODS
  The cohort included 265 participants from a regional nephrology center in a rural state; 147 of who received MNT were compared to a group that did not receive MNT and had started dialysis over a 10-year period.
  
  
  METHODS
  MNT by a registered dietitian with expertise in CKD.
  
  
  METHODS
  Average time to dialysis, based on stage of CKD at baseline, was compared between groups. In addition, the effect of MNT on the change in biochemical measures for estimated glomerular filtration rate, blood urea nitrogen, albumin, CKD Mineral and Bone Disorder (MBD) markers (phosphorous, calcium, and intact parathyroid hormone) at baseline and at follow-up (dialysis initiation or most recent laboratories if dialysis was not started) was assessed.
  
  
  RESULTS
  MNT group had less of a decline in estimated glomerular filtration rate than the non-MNT group (0.3 vs. 9.9 mL/minute/1.73 m(2), respectively) a mean difference of 9.6 (P < 0.001). When adjusted for stage using linear regression, the mean difference was greater (11.4, P < .001). Using survival analysis and Cox proportional hazards regression, the non-MNT group was 3.15 more likely to initiate dialysis. Stratified by Stages 3 and 4 that hazard ratio increased (3.47 and 3.45, respectively). Albumin and markers of CKD-MBD were more likely to be within normal limits in the MNT group. The results indicate that better outcomes occur when MNT is given at CKD Stage 3 or 4 rather than CKD Stage 5.
  
  
  CONCLUSIONS
  Results suggest that people with CKD who received MNT were less likely to start dialysis and had improved nutritional biomarkers than participants who did not receive MNT.
authors.affiliation: Department of Nephrology, University of Vermont Medical Center, Burlington, Vermont. Electronic address: Desiree.deWaal@UVMHealth.org.
authors.forename: Desirée
authors.initials: D
authors.lastname: de Waal
authors.affiliation: The Community Health Centers of Burlington, Burlington, Vermont.
authors.forename: Emily
authors.initials: E
authors.lastname: Heaslip
authors.affiliation: Department of Medical Biostatistics, University of Vermont, Burlington, Vermont.
authors.forename: Peter
authors.initials: P
authors.lastname: Callas
mesh_terms: D000368:Aged; D015415:Biomarkers / Q000097:blood*; D001806:Blood Urea Nitrogen; D002118:Calcium / Q000097:blood; D018450:Disease Progression; D005260:Female; D005500:Follow-Up Studies; D005919:Glomerular Filtration Rate; D006801:Humans; D008297:Male; D044623:Nutrition Therapy; D064686:Nutritionists; D010281:Parathyroid Hormone / Q000097:blood; D010758:Phosphorus / Q000097:blood; D016016:Proportional Hazards Models; D011788:Quality of Life; D006435:Renal Dialysis; D051436:Renal Insufficiency, Chronic / Q000178:diet therapy*; D012189:Retrospective Studies; D012424:Rural Population; D012709:Serum Albumin
chemical_list: D015415:Biomarkers; D010281:Parathyroid Hormone; D012709:Serum Albumin; D010758:Phosphorus; D002118:Calcium