title: Blood groups ABO and grass-pollen hayfever.
abstract: The frequency distribution of the blood group phenotypes ABO was examined in retrospect in a selected group of 241 Patients with grass pollen hayfever. A relative deficiency in blood group O was found, with a shift toward an over-represented B-phenotype as compared to the general population. This shift appeared to be largely due to the contribution from the female patients with pollinosis. Comparison with literature data confirmed a lower frequency of the O-phenotype in atopic patients in general, irrespective of the specific sensitivities.
authors.affiliation: Elisabeth Hospital, Amersfoort.
authors.forename: W J
authors.initials: WJ
authors.lastname: Koers
authors.forename: G F
authors.initials: GF
authors.lastname: Houben
authors.forename: L
authors.initials: L
authors.lastname: Berrens
mesh_terms: D000017:ABO Blood-Group System / Q000235:genetics*; D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004198:Disease Susceptibility; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D006109:Poaceae / Q000276:immunology; D011852:Radioallergosorbent Test; D012189:Retrospective Studies; D006255:Rhinitis, Allergic, Seasonal / Q000209:etiology / Q000235:genetics*
chemical_list: D000017:ABO Blood-Group System