title: Impact of the May 12, 2008, Earthquake on blood donations across five Chinese blood centers.
abstract: BACKGROUND
  On May 12, 2008, a severe earthquake struck China's Sichuan Province. The nationwide outpouring of charity resulted in a surge of subsequent blood donations. The quantity and quality of these donations were examined in comparison with routine donations.
  
  
  METHODS
  Whole blood and apheresis donations from five geographically different blood centers collected within 1 week postearthquake were compared with those collected during the rest of the year. Regional differences, demographic characteristics, first-time and repeat donor status, and infectious disease screening markers associated with these donations were compared by earthquake status using chi-square statistics. Poisson regression analysis examined the number of daily donations by earthquake status after adjusting for center, day of week, and seasonal variations.
  
  
  RESULTS
  The number of daily donations across five blood centers increased from 685 on a typical day to 1151 in the postearthquake week. The surge was observed in both sexes and across different education levels, age, and ethnicity groups and three blood centers and was significant after adjusting for confounding covariates. The influx of first-time donors (89.5%) was higher than that of repeat donors (34%). There was a significant change in the overall screening reactive marker rates excluding alanine aminotransferase (2.06% vs. 1.72%% vs. 4.96%). However, when the individual screening test was analyzed separately, no significant differences were found.
  
  
  CONCLUSIONS
  Timely donations in response to a disaster are crucial to ensure emergency blood transfusion. The dramatically increased postearthquake donations suggest that Chinese blood centers are capable of handling emergency blood needs. Measures to maintain blood safety should be taken in times of emergency.
authors.affiliation: Westat, Inc., Rockville, Maryland, USA.
authors.forename: Jing
authors.initials: J
authors.lastname: Liu
authors.forename: Yi
authors.initials: Y
authors.lastname: Huang
authors.forename: Jingxing
authors.initials: J
authors.lastname: Wang
authors.forename: Xinhong
authors.initials: X
authors.lastname: Bi
authors.forename: Julin
authors.initials: J
authors.lastname: Li
authors.forename: Yunlai
authors.initials: Y
authors.lastname: Lu
authors.forename: Xiuqiong
authors.initials: X
authors.lastname: Wen
authors.forename: Fuzhu
authors.initials: F
authors.lastname: Yao
authors.forename: Xiangdong
authors.initials: X
authors.lastname: Dong
authors.forename: Weilan
authors.initials: W
authors.lastname: He
authors.forename: Mei
authors.initials: M
authors.lastname: Huang
authors.forename: Hongli
authors.initials: H
authors.lastname: Ma
authors.forename: Heili
authors.initials: H
authors.lastname: Mei
authors.forename: Melissa
authors.initials: M
authors.lastname: King
authors.forename: David J
authors.initials: DJ
authors.lastname: Wright
authors.forename: Paul M
authors.initials: PM
authors.lastname: Ness
authors.forename: Hua
authors.initials: H
authors.lastname: Shan
mesh_terms: D000328:Adult; D001771:Blood Banks / Q000706:statistics & numerical data*; D001782:Blood Donors / Q000706:statistics & numerical data*; D002681:China; D055866:Earthquakes; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged