title: The importance of fasting blood glucose in screening for gestational diabetes.
abstract: OBJECTIVE
  To determine how well an isolated abnormal fasting blood glucose (FBG) value on the 1-step, 75-g, 2-hour glucose tolerance test (GTT) indicates significant gestational diabetes (GDM).
  
  
  METHODS
  Retrospective cohort study, January 2011 to May 2012. Patients diagnosed by the 1-step method were assigned by their abnormal results to the isolated fasting (FBG), isolated 1-hour (1HBG), isolated 2-hour (2HBG), or multiple-value (≥2BG) group. Characteristics and outcomes were compared using ANOVA, Kruskal--Wallis, and Chi-squared tests.
  
  
  RESULTS
  324 patients were included. Compared to other groups, the FBG group (N = 23) had the highest incidence of requiring medical therapy (78.26%), mean body mass index (29.40 ± 6.20 kg/m(2)), and percentage of Black plus Hispanic women (60.87%).
  
  
  CONCLUSIONS
  Seven percent of women were diagnosed with GDM by an isolated abnormal fasting BG and have significant disease. This group should not be missed; therefore, fasting BG should be integrated into all GDM screening.
authors.affiliation: Department of Obstetrics & Gynecology, St. Luke's-Roosevelt Hospital Center , New York , USA.
authors.forename: Kimberly
authors.initials: K
authors.lastname: Herrera
authors.forename: Lois
authors.initials: L
authors.lastname: Brustman
authors.forename: Janelle
authors.initials: J
authors.lastname: Foroutan
authors.forename: Sophia
authors.initials: S
authors.lastname: Scarpelli
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Murphy
authors.forename: Antonia
authors.initials: A
authors.lastname: Francis
authors.forename: Barak
authors.initials: B
authors.lastname: Rosenn
mesh_terms: D000328:Adult; D015415:Biomarkers / Q000097:blood; D001786:Blood Glucose / Q000378:metabolism*; D016640:Diabetes, Gestational / Q000097:blood / Q000175:diagnosis*; D005215:Fasting / Q000097:blood*; D005260:Female; D005951:Glucose Tolerance Test; D006801:Humans; D011247:Pregnancy; D012189:Retrospective Studies; D012680:Sensitivity and Specificity
chemical_list: D015415:Biomarkers; D001786:Blood Glucose
keywords: 1-step method; 2-hour glucose tolerance test; 2-step method