title: Changing donor source pattern for kidney transplantation over 40 years: a single-center experience.
abstract: OBJECTIVE
  Kidney transplantations at our center rely mainly on living donors. The purpose of this study was to suggest future donor supply directions by reviewing changing trends in donor type.
  
  
  METHODS
  During the past 40 years, 1,690 kidney transplantations were performed at our center. We divided the follow-up period into four decades and the donor population into three groups: living related, living unrelated, and deceased. We analyzed changing trends in donors from each group for each decade. Patients receiving overseas transplantation were also included.
  
  
  RESULTS
  The proportion of living related donors decreased from 84% (54/64) in the 1970s to 61% (281/458) in the 2000s. Living unrelated donors showed a sustained proportion of around 20% after 1990. However, among living unrelated donors, the proportion of spouse donors increased from 4.6% (17/369) in the 1980s to 8.5% (39/458) in the 2000s. Transplants from deceased donors were only 3.3% (12/369) in the 1980s. However the proportion of deceased donors increased gradually, reaching 13.2% (105/799) in the 1990s and 19.9% (91/458) after 2000. Overseas transplantations increased after 2000 and reached 20% of all cases treated in our center during the 2000s. Such transplantations peaked in 2006 and decreased markedly thereafter.
  
  
  CONCLUSIONS
  The proportion of each donor type has continuously changed, and the changes were associated with changes in the social structure and system. We expect that this study could be an important reference for other countries to estimate future changes of donor type.
authors.affiliation: Organ Transplantation Center, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea.
authors.forename: Byung Ha
authors.initials: BH
authors.lastname: Chung
authors.forename: Mi Hyang
authors.initials: MH
authors.lastname: Jung
authors.forename: Sung Ha
authors.initials: SH
authors.lastname: Bae
authors.forename: Suk Hui
authors.initials: SH
authors.lastname: Kang
authors.forename: Hyeon Seok
authors.initials: HS
authors.lastname: Hwang
authors.forename: Bok Jin
authors.initials: BJ
authors.lastname: Hyoung
authors.forename: So Young
authors.initials: SY
authors.lastname: Lee
authors.forename: Youn Ju
authors.initials: YJ
authors.lastname: Jeon
authors.forename: Bum Soon
authors.initials: BS
authors.lastname: Choi
authors.forename: Cheol Whee
authors.initials: CW
authors.lastname: Park
authors.forename: Yong-Soo
authors.initials: YS
authors.lastname: Kim
authors.forename: Ji-Il
authors.initials: JI
authors.lastname: Kim
authors.forename: In Sung
authors.initials: IS
authors.lastname: Moon
authors.forename: Chul Woo
authors.initials: CW
authors.lastname: Yang
mesh_terms: D000328:Adult; D005260:Female; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D016030:Kidney Transplantation / Q000266:history* / Q000706:statistics & numerical data / Q000639:trends; D007723:Korea; D019520:Living Donors / Q000266:history / Q000706:statistics & numerical data; D008297:Male; D008875:Middle Aged; D014019:Tissue Donors / Q000266:history* / Q000706:statistics & numerical data; D009927:Tissue and Organ Procurement / Q000266:history / Q000706:statistics & numerical data / Q000639:trends