title: Changes in blood center red blood cell distributions in the era of patient blood management: the trends for collection (TFC) study.
abstract: As patient blood management becomes more widespread, fewer red blood cell (RBC) units have been transfused. This multinational study evaluated changes in blood center RBC distributions.
  
  
  
  Data on number and ABO and D groups of RBC distributions were obtained from several large American blood centers and national or provincial blood services (NPBS) from fiscal year (FY) 2010 through FY2014. Due to relatively larger numbers of distributions and differences in ABO and D groups between the Japanese Red Cross and the other NPBS, Japanese data were not included in distributions calculations.
  
  
  
  Data from seven American blood centers and eight NPBS were obtained. Overall, at both the American and the seven NPBS that were analyzed, there were declines in the number of RBC distributions between FY2010 and FY2014, 16.9 and 8.0%, respectively. The number of O- RBC distributions decreased by 9.0% at American blood centers but the proportion of RBC distributions that were O- increased by 9.3% during this time. The NPBS had 1.6% increase in O- RBC distributions and 10.5% increase in the proportion of O- distributions. The proportion of O+ distributions increased slightly over time at American centers (2.9%) while decreasing slightly (1.1%) at NPBS despite reductions in the absolute numbers of O+ distributions. Overall there was 2.6% decrease in the proportion of B+ and AB+ RBCs distributed and 13.6% absolute reduction in the number of these units distributed.
  
  
  
  Although overall RBC distributions have decreased over time, the proportion of O units has increased substantially.
authors.affiliation: The Institute for Transfusion Medicine, Pittsburgh, Pennsylvania.
authors.forename: Mark H
authors.initials: MH
authors.lastname: Yazer
authors.affiliation: The Institute for Transfusion Medicine, Pittsburgh, Pennsylvania.
authors.forename: Bryon
authors.initials: B
authors.lastname: Jackson
authors.affiliation: Australian Red Cross Blood Service, Melbourne, Victoria, Australia.
authors.forename: Neil
authors.initials: N
authors.lastname: Beckman
authors.affiliation: Australian Red Cross Blood Service, Melbourne, Victoria, Australia.
authors.forename: Stuart
authors.initials: S
authors.lastname: Chesneau
authors.affiliation: Irish Blood Transfusion Service, Dublin, Ireland;
authors.forename: Patrick
authors.initials: P
authors.lastname: Bowler
authors.affiliation: Bloodworks Northwest, Seattle, Washington.
authors.forename: Meghan
authors.initials: M
authors.lastname: Delaney
authors.affiliation: Canadian Blood Services, Vancouver, British Columbia, Canada.
authors.forename: Dana
authors.initials: D
authors.lastname: Devine
authors.affiliation: Welsh Blood Service, Cardiff, Wales.
authors.forename: Stephen
authors.initials: S
authors.lastname: Field
authors.affiliation: Héma Québec, Québec City, Quebec, Canada.
authors.forename: Marc
authors.initials: M
authors.lastname: Germain
authors.affiliation: NHS Blood & Transplant, Oxford, UK.
authors.forename: Mike F
authors.initials: MF
authors.lastname: Murphy
authors.affiliation: Carter BloodCare and the University of Texas Southwestern, Dallas, Texas.
authors.forename: Merlyn
authors.initials: M
authors.lastname: Sayers
authors.affiliation: New York Blood Center, New York, New York.
authors.forename: Beth
authors.initials: B
authors.lastname: Shaz
authors.affiliation: Magen David Adom, National Blood Services, Ramat Gan, Israel.
authors.forename: Eilat
authors.initials: E
authors.lastname: Shinar
authors.affiliation: Japanese Red Cross, Tokyo, Japan.
authors.forename: Minoko
authors.initials: M
authors.lastname: Takanashi
authors.affiliation: Blood Systems, Inc, Scottsdale, Arizona.
authors.forename: Ralph
authors.initials: R
authors.lastname: Vassallo
authors.affiliation: NHS Blood & Transplant, Oxford, UK.
authors.forename: Crispin
authors.initials: C
authors.lastname: Wickenden
authors.affiliation: Magen David Adom, National Blood Services, Ramat Gan, Israel.
authors.forename: Vered
authors.initials: V
authors.lastname: Yahalom
authors.affiliation: United Blood Services, Scottsdale, Arizona.
authors.forename: Kevin
authors.initials: K
authors.lastname: Land
mesh_terms: D001771:Blood Banks / Q000706:statistics & numerical data*; D017707:Erythrocyte Transfusion / Q000706:statistics & numerical data*; D004912:Erythrocytes / Q000166:cytology*; D006801:Humans