title: Influence of protein intake and muscle mass on survival in chronic dialysis patients.
abstract: BACKGROUND
  Some studies suggest that high body mass index (BMI) confers survival advantage in dialysis patients, but BMI does not differentiate muscle from fat mass, and the survival advantage conferred by its increase seems to be limited to patients with high muscle mass. Thus, discriminating body components when evaluating nutritional status and survival is highly important. This study evaluated the influence of nutritional parameters on survival in patients on chronic dialysis.
  
  
  METHODS
  Anthropometry, bioimpedance, biochemistry, and dietary recall were used to investigate the influence of nutritional parameters on survival in 79 prevalent patients on chronic dialysis.
  
  
  RESULTS
  Protein intake <1.2 g/kg/day and creatinine <9.7 mg/dL were independent predictors of mortality in all patients. Regarding dialysis method, protein intake <1.2 g/kg/day was predictive of mortality among hemodialysis patients, and percent standard mid-arm muscle circumference <80% was identified as a risk factor among peritoneal dialysis patients.
  
  
  CONCLUSIONS
  Higher muscle mass, possibly favored by a higher protein intake, conferred survival advantage in dialysis patients.
authors.affiliation: Department of Clinical Medicine, Botucatu School of Medicine, São Paulo State University, UNESP, Botucatu, São Paulo, Brazil.
authors.forename: Aline Araujo
authors.initials: AA
authors.lastname: Antunes
authors.forename: Francieli
authors.initials: F
authors.lastname: Delatim Vannini
authors.forename: Liciana Vaz
authors.initials: LV
authors.lastname: de Arruda Silveira
authors.forename: Luis Cuadrado
authors.initials: LC
authors.lastname: Martin
authors.forename: Pasqual
authors.initials: P
authors.lastname: Barretti
authors.forename: Jacqueline Costa Teixeira
authors.initials: JC
authors.lastname: Caramori
mesh_terms: D000328:Adult; D000368:Aged; D001823:Body Composition; D001938:Brazil / Q000453:epidemiology; D004044:Dietary Proteins / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D007676:Kidney Failure, Chronic / Q000401:mortality*; D008297:Male; D008875:Middle Aged; D009132:Muscles; D009752:Nutritional Status; D011446:Prospective Studies; D006435:Renal Dialysis
chemical_list: D004044:Dietary Proteins