title: The relationship of Helicobacter pylori positivity with age, sex, and ABO/Rhesus blood groups in patients with gastrointestinal complaints in Turkey.
abstract: BACKGROUND
  To determine the magnitude of Helicobacter pylori infection in patients with gastrointestinal complaints in Turkey.
  
  
  METHODS
  We studied 1680 patients with variable gastrointestinal complaints. The H. pylori infection status was determined using C-14 urea breath test (UBT). Overall, 1567 patients (548 male, 1019 female; age range 4-80 years, mean 29.37 +/- 17.30 years) were included in this study. The relationship between H. pylori positivity and age, sex, sociodemographic characteristic, blood groups, and gastrointestinal diagnosis was determined.
  
  
  RESULTS
  H. pylori positivity was found to be 68%. The difference in positivity rates between age groups 4-9 years and other groups was statistically significant (p = .001). H. pylori positivity was 67.7% in males and 68.2% in females (p = .865). H. pylori positivity was 72.1, 65.1, 70, and 68.4% in blood groups A, B, AB, and O (p = .703), and 68.9% and 76.3% in Rh (+) and Rh (-) blood subgroups, respectively (p = .292). There was no statistically significant difference between H. pylori positivity and gastrointestinal diagnosis (p = .980). There was significant association between increased number of household members and low socioeconomic status, and H. pylori positivity (p < .001). Living in rural and suburban area was significantly associated with H. pylori positivity compared with living in urban.
  
  
  CONCLUSIONS
  H. pylori infection positivity rate was 68% in symptomatic subjects in Turkey and the positivity rate was significantly lower at age 4-9 years than the other age groups. It was not related to gender, ABO, and Rh blood groups and gastrointestinal diagnosis. Low socioeconomic conditions and living in rural and suburban area were significantly associated with H. pylori positivity.
authors.affiliation: Department of Nuclear Medicine, Ankara Training and Research Hospital, Ankara, Turkey. sturkolmez@yahoo.com
authors.forename: Türkölmez
authors.initials: T
authors.lastname: Seyda
authors.forename: Cayir
authors.initials: C
authors.lastname: Derya
authors.forename: Aydoğan
authors.initials: A
authors.lastname: Füsun
authors.forename: Korkmaz
authors.initials: K
authors.lastname: Meliha
mesh_terms: D000017:ABO Blood-Group System; D000367:Age Factors; D000368:Aged; D005260:Female; D005767:Gastrointestinal Diseases / Q000097:blood / Q000382:microbiology*; D016481:Helicobacter Infections / Q000097:blood* / Q000453:epidemiology; D016480:Helicobacter pylori / Q000302:isolation & purification*; D006801:Humans; D008297:Male; D012204:Rh-Hr Blood-Group System; D012737:Sex Factors; D014421:Turkey
chemical_list: D000017:ABO Blood-Group System; D012204:Rh-Hr Blood-Group System