title: [Blood groups and open-angle glaucoma in Tunisia].
abstract: OBJECTIVE
  To determine whether blood groups are genetic markers for primary open angle glaucoma (POAG).
  
  
  METHODS
  ABO, rhesus, and Kell and Duffy blood groups were analyzed in 114 POAG cases and in a control group of age- and sex-matched patients (96 cases).
  
  
  RESULTS
  AB groups are significantly more frequent in POAG cases (10.5%) than in the control group (2%). However, no association was found between POAG and ABO, rhesus, and Kell and Duffy blood groups even when men and women were studied separately.
  
  
  CONCLUSIONS
  AB blood groups seem to be genetic markers of POAG but further studies are needed to confirm this association.
authors.affiliation: Service d'Ophtalmologie, Hôpital La Rabta, Tunis, Tunisie.
authors.forename: A
authors.initials: A
authors.lastname: Jeddi Blouza
authors.forename: I
authors.initials: I
authors.lastname: Loukil
authors.forename: A
authors.initials: A
authors.lastname: Mhenni
authors.forename: C
authors.initials: C
authors.lastname: Ben Rayana
authors.forename: S
authors.initials: S
authors.lastname: Hmida
mesh_terms: D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D004375:Duffy Blood-Group System; D005260:Female; D005902:Glaucoma, Open-Angle / Q000097:blood / Q000453:epidemiology* / Q000235:genetics; D006801:Humans; D007626:Kell Blood-Group System; D008951:MNSs Blood-Group System; D008297:Male; D012204:Rh-Hr Blood-Group System; D014416:Tunisia / Q000453:epidemiology
chemical_list: D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D004375:Duffy Blood-Group System; D007626:Kell Blood-Group System; D008951:MNSs Blood-Group System; D012204:Rh-Hr Blood-Group System