title: Are erectile functions affected by AB0 blood group?
abstract: OBJECTIVE
  The aim of this study was to investigate whether there is a relationship between erectile dysfunction (ED), thought to be a vascular disease, and AB0 blood group.
  
  
  METHODS
  The study included 350 people abiding by the study criteria who applied to our clinic from April 2012-April 2015. The patients were divided into two groups including those with ED (Group 1) and those without (Group 2). Age, blood group, IIEF-5 score and presence of additional diseases were recorded. Erectile functions were analyzed according to blood group.
  
  
  RESULTS
  There was no difference between the mean age of 111 patients with ED and that of 239 patients without ED included in the study (p = 0.284). There was no difference between patients in the two groups in terms of smoking, alcohol use, hypertension and diabetes (p &gt; 0.05). Among patients in the ED group, the mean IIEF-5 score according to blood group was 19.8 ± 5.04 in the 0 blood group, 16.5 ± 5.2 in the A blood group, 17.2 ± 5.3 in the B blood group and 13.3 ± 3.02 in the AB blood group. The IIEF-5 scores of individuals in the 0 blood group were significantly high compared to individuals in other blood groups (p = 0.004). Logistic regression analysis found that compared to the 0 blood group, the erectile dysfunction risk was 3.9 times greater for the A blood group, 3.5 times greater for the B blood group and 4.7 times greater for the AB blood group (p = 0.001) (Table 3).
  
  
  CONCLUSIONS
  The risk of erectile dysfunction was significantly increased for individuals in the A, B and AB blood groups compared to individuals in the 0 blood group.
authors.affiliation: Department of Urology, Ordu University, Faculty of Medicine, Ordu. drerdalbenli@gmail.com.
authors.forename: Erdal
authors.initials: E
authors.lastname: Benli
authors.forename: Abdullah
authors.initials: A
authors.lastname: Çırakoglu
authors.forename: Ercan
authors.initials: E
authors.lastname: Ögreden
authors.forename: Selamettin
authors.initials: S
authors.lastname: Demir
authors.forename: Yasemin
authors.initials: Y
authors.lastname: Kaya
authors.forename: Mustafa
authors.initials: M
authors.lastname: Ibas
authors.forename: Ali
authors.initials: A
authors.lastname: Ayyıldız
authors.forename: Ahmet
authors.initials: A
authors.lastname: Yüce
mesh_terms: D000017:ABO Blood-Group System; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D007172:Erectile Dysfunction / Q000097:blood* / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged
chemical_list: D000017:ABO Blood-Group System