title: Diagnosis of gestational diabetes mellitus by use of the homeostasis model assessment-insulin resistance index in the first trimester.
abstract: OBJECTIVE
  Gestational diabetes mellitus (GDM) affects 2-10% of all pregnant women, causing increased morbidity and mortality, and is tested for in the second trimester of pregnancy. The purpose of the present study was to predict GDM in the first trimester.
  
  
  METHODS
  The study included 271 patients who were between the 10th and 14th week of gestation. Fasting glucose and insulin were measured in the first trimester and the homeostasis model assessment-insulin resistance index (HOMA-IR) was calculated for each patient. These values were compared with the results of the second-trimester glucose tolerance test.
  
  
  RESULTS
  HOMA-IR values were higher in women with GDM. A cut-off value of 2.60 for HOMA-IR was calculated at the end of the study.
  
  
  CONCLUSIONS
  Accepting patients whose HOMA-IR value is higher than 2.60 in the first trimester seems to be a good method to predict GDM.
authors.affiliation: Department of Obstetrics and Gynecology, Baskent University Hospital, Baskent, Turkey. eparlakyigit@yahoo.com
authors.forename: Emel Ebru
authors.initials: EE
authors.lastname: Ozcimen
authors.forename: Ayla
authors.initials: A
authors.lastname: Uckuyu
authors.forename: Faika Ceylan
authors.initials: FC
authors.lastname: Ciftci
authors.forename: Filiz Fatma
authors.initials: FF
authors.lastname: Yanik
authors.forename: Coskun
authors.initials: C
authors.lastname: Bakar
mesh_terms: D000328:Adult; D001786:Blood Glucose / Q000032:analysis; D016640:Diabetes, Gestational / Q000097:blood / Q000175:diagnosis* / Q000178:diet therapy / Q000188:drug therapy; D004311:Double-Blind Method; D005260:Female; D005951:Glucose Tolerance Test / Q000379:methods; D006305:Health Status Indicators; D006706:Homeostasis / Q000502:physiology; D006801:Humans; D007328:Insulin / Q000097:blood / Q000627:therapeutic use; D007333:Insulin Resistance / Q000502:physiology*; D008954:Models, Biological; D011247:Pregnancy; D011261:Pregnancy Trimester, First / Q000097:blood / Q000378:metabolism* / Q000502:physiology
chemical_list: D001786:Blood Glucose; D007328:Insulin