title: More Than 1000 Kidney Transplants Performed in Pamplona, Navarra: Data From the Collaborative Transplant Study.
abstract: BACKGROUND
  The Kidney Transplant Program started at the Clinica Universidad de Navarra (Pamplona, Spain) in September of 1969. The 1000th kidney transplant was performed in September 2015. Data from kidney transplants have been included in the Collaborative Transplant Study since 1983.
  
  
  METHODS
  Data on patient and graft survival of the 635 kidney transplants (557 first kidney transplants and 78 second kidney transplants) performed in the Clinica Universidad de Navarra between 1990 and 2014, as well as the estimated average life of the grafts are described and compared with data from the more than 150,000 European kidney transplants included in the Collaborative Transplant Study in the same period.
  
  
  RESULTS
  Data of our patient and graft survival are statistically significantly better (P < .05) than those of the over 150,000 European transplants analyzed in the Collaborative Transplant Study in the same period. The estimated half-life of the kidney transplants performed in our Center is 18.5 years for first transplants and 15.7 years for second transplants, compared to 13.9 and 11.2 years, respectively, calculated for the European transplants.
  
  
  CONCLUSIONS
  Data obtained from the Collaborative Transplant Study confirm excellent graft survival in our Center with an estimated half-life higher than that of the European transplants included in this study.
authors.affiliation: Nephrology Department, Clinica Universidad de Navarra, Pamplona, Spain. Electronic address: plmartin@unav.es.
authors.forename: P L
authors.initials: PL
authors.lastname: Martin Moreno
authors.affiliation: Nephrology Department, Clinica Universidad de Navarra, Pamplona, Spain.
authors.forename: N
authors.initials: N
authors.lastname: Garcia Fernandez
authors.affiliation: Nephrology Department, Clinica Universidad de Navarra, Pamplona, Spain.
authors.forename: F J
authors.initials: FJ
authors.lastname: Lavilla Royo
authors.affiliation: Nephrology Department, Clinica Universidad de Navarra, Pamplona, Spain.
authors.forename: J M
authors.initials: JM
authors.lastname: Mora Gutiérrez
authors.affiliation: Nephrology Department, Clinica Universidad de Navarra, Pamplona, Spain.
authors.forename: P
authors.initials: P
authors.lastname: Errasti Goenaga
mesh_terms: D000328:Adult; D005060:Europe; D006085:Graft Survival; D006801:Humans; D007391:International Cooperation; D016030:Kidney Transplantation / Q000706:statistics & numerical data*; D016016:Proportional Hazards Models; D012042:Registries; D013030:Spain