title: [The prevalence of gestational diabetes mellitus in Polish population].
abstract: OBJECTIVE
  The aim of the study was to determine the frequency of GDM in different parts of Poland and to assess whether 1 h--glucose plasma levels after 50 g glucose tolerance test (50 g OGTT) reflect the risk of GDM.
  
  
  METHODS
  A total of 5778 pregnant women were screened with 50 g OGTT between 24 and 28 weeks of gestation. All subjects whose post-challenge glucose levels exceeded 140 mg/dl had 75 g OGTT performed according to WHO criteria.
  
  
  RESULTS
  The rate of abnormal screening test results ranged from 8.0% to 20.7% for different regions of Poland, respectively. The pathological 50 g OGTT results were from 140 mg/dl to 320 mg/dl. Screening test results within 140 mg/dl to 149 mg/dl were confirmed by positive 75 g OGTT only in 2.9% subjects. All patients whose 1 h--glucose levels at 50 g OGTT were greater than 190 mg/dl had pathological 75 g OGTT results as well.
  
  
  CONCLUSIONS
  The prevalence of GDM in different parts of Poland ranged from 2.0% to 3.8% (the average 3.4%).
authors.affiliation: Zakładu Endokrynologii Ginekologicznej Instytutu Połoznictwa i Chorób Kobiecych Akademii Medycznej w Gdańsku.
authors.forename: Czesław
authors.initials: C
authors.lastname: Wójcikowski
authors.forename: Beata
authors.initials: B
authors.lastname: Królikowska
authors.forename: Joanna
authors.initials: J
authors.lastname: Konarzewska
authors.forename: Wiesław
authors.initials: W
authors.lastname: Kanadys
authors.forename: Marian
authors.initials: M
authors.lastname: Drozdzal
authors.forename: Jarosław
authors.initials: J
authors.lastname: Olszewski
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Łukaszuk
mesh_terms: D000328:Adult; D001786:Blood Glucose / Q000378:metabolism*; D016640:Diabetes, Gestational / Q000097:blood / Q000175:diagnosis* / Q000453:epidemiology*; D005260:Female; D005951:Glucose Tolerance Test; D006801:Humans; D011044:Poland / Q000453:epidemiology; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods; D015995:Prevalence; D012680:Sensitivity and Specificity; D013997:Time Factors
chemical_list: D001786:Blood Glucose