title: The prevalence of celiac disease in blood donors in Iceland.
abstract: BACKGROUND
  Prospective epidemiological studies based on serological methods have shown that celiac disease is more common than previously thought. The aim of this study was to evaluate the prevalence of celiac disease among apparently healthy blood donors in Iceland.
  
  
  METHODS
  Plasma samples were obtained from 813 apparently healthy blood donors at the FSA Hospital Blood Bank in Akureyri, Iceland, between December 2004 and January 2007 and screened for human tissue transglutaminase IgA antibodies. Positive samples were retested and, if the test was again positive, the subject was referred to a gastroenterologist for clinical examination and a duodenoscopy with mucosal biopsies.
  
  
  RESULTS
  Six subjects tested positive for tissue transglutaminase. The prevalence of biopsy-confirmed celiac disease, according to modified Marsh classification, among apparently healthy blood donors in Iceland was found to be 1:136 (0.74%, 95% confidence interval 1/667-1/75, 0.15-1.33%).
  
  
  CONCLUSIONS
  Prevalence of celiac disease in Iceland is similar to what has been reported in many other countries.
authors.affiliation: Department of Medicine, FSA University Hospital, 600, Akureyri, Iceland.
authors.forename: Gudmundur F
authors.initials: GF
authors.lastname: Johannsson
authors.forename: Gudjon
authors.initials: G
authors.lastname: Kristjansson
authors.forename: Nick
authors.initials: N
authors.lastname: Cariglia
authors.forename: Vigfus
authors.initials: V
authors.lastname: Thorsteinsson
mesh_terms: D000293:Adolescent; D000328:Adult; D001782:Blood Donors / Q000706:statistics & numerical data*; D002446:Celiac Disease / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007055:Iceland / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D011446:Prospective Studies; D055815:Young Adult