The importance of fasting blood glucose in screening for gestational diabetes
Kimberly Herrera1, Lois Brustman, Janelle Foroutan
1Department of Obstetrics & Gynecology, St. Luke's-Roosevelt Hospital Center , New York , USA.
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.
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