title: Health-related quality of life as a predictor of mortality in patients on peritoneal dialysis.
abstract: OBJECTIVE
  to characterize deaths that occurred, and the association between socio-demographic, clinical, laboratory variables and health-related quality of life and the outcome of death in patients on peritoneal dialysis, over a two year period after an initial assessment.
  
  
  METHODS
  observational, prospective population study with 82 patients on peritoneal dialysis. The instruments used for the first stage of data collection were the mini-mental state examination, a sociodemographic, economic, clinical and laboratory questionnaire and the Kidney Disease and Quality of Life-Short Form. After two years, data for characterization and occurrence of death in the period were collected. The relative risk of death outcome was calculated through statistical analysis; the risk of death was estimated by the survival Kaplan-Meier curve, and determined predictors of death by the Cox Proportional Hazards Model.
  
  
  RESULTS
  of the 82 original participants, 23 had as an outcome death within two years. The increased risk for the outcome of death was associated with a lower mean score of health-related quality of life in the physical functioning domain.
  
  
  CONCLUSIONS
  the worst health-related quality of life in the physical functioning domain, could be considered a predictor of death.
authors.affiliation: Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil.
authors.forename: Marília Pilotto
authors.initials: MP
authors.lastname: de Oliveira
authors.affiliation: Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil.
authors.forename: Luciana
authors.initials: L
authors.lastname: Kusumota
authors.affiliation: Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, SP, Brazil.
authors.forename: Vanderlei José
authors.initials: VJ
authors.lastname: Haas
authors.affiliation: Universidade Federal do Triângulo Mineiro, Uberaba, MG, Brazil.
authors.forename: Rita de Cássia Helú Mendonça
authors.initials: Rde C
authors.lastname: Ribeiro
authors.affiliation: Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil.
authors.forename: Sueli
authors.initials: S
authors.lastname: Marques
authors.affiliation: Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil.
authors.forename: Graziella Allana Serra Alves de Oliveira
authors.initials: GA
authors.lastname: Oller
mesh_terms: D006304:Health Status; D006801:Humans; D053208:Kaplan-Meier Estimate; D007674:Kidney Diseases / Q000401:mortality / Q000628:therapy; D010530:Peritoneal Dialysis / Q000401:mortality*; D016016:Proportional Hazards Models; D011446:Prospective Studies; D011788:Quality of Life; D011795:Surveys and Questionnaires