title: Thirty years in a peritoneal dialysis unit: long-term survival.
abstract: BACKGROUND
  Peritoneal dialysis (PD) is an established renal replacement therapy technique which thanks to the technological and clinical advances has improved its survival rates in recent years.
  
  
  OBJECTIVE
  The aim of this study was to evaluate patient and technique survival in PD over 30 years, according to the different decades in order to consolidate its usefulness in healthcare.
  
  
  METHODS
  Retrospective cohort study including all patients in the PD programme of the Hospital Universitario La Paz (Madrid), from 1980 to 2010. Demographic and clinical variables were collected from medical records.
  
  
  RESULTS
  A total of 667 patients were included, 54.4% male, with a mean age of 51.47 years and a median follow-up period of 23.1 months. There was a progressive increase in PD incident patients, especially in automated PD (APD). Patient survival at 5 years was 54%, with a median of 64.66 months, increasing significantly in the last decade (P=.000). Age, comorbidity, male sex, chronic ambulatory PD (CAPD) and diabetes were predictors of patient survival. Technique survival at 5 years was 64.2% with a median of 82 months. The success of the technique was greater in younger patients on APD and with lower comorbidity.
  
  
  CONCLUSIONS
  Over 30 years, we found an increase in incident patients. Age, comorbidity and diabetes still continue to be the main determining factors for survival.
authors.affiliation: Servicio de Nefrología, Hospital Universitario La Paz, Universidad Autónoma de Madrid, Spain. e.desousa.amorim@gmail.com
authors.forename: Erika
authors.initials: E
authors.lastname: De Sousa-Amorim
authors.forename: M Auxiliadora
authors.initials: MA
authors.lastname: Bajo-Rubio
authors.forename: Gloria
authors.initials: G
authors.lastname: del Peso-Gilsanz
authors.forename: M José
authors.initials: MJ
authors.lastname: Castro
authors.forename: Olga
authors.initials: O
authors.lastname: Celadilla
authors.forename: Rafael
authors.initials: R
authors.lastname: Selgas-Gutiérrez
mesh_terms: D000368:Aged; D015331:Cohort Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010530:Peritoneal Dialysis / Q000401:mortality; D012189:Retrospective Studies; D016019:Survival Analysis; D015996:Survival Rate; D013997:Time Factors