Obstet Gynecol Sci.  2020 Jan;63(1):19-26. 10.5468/ogs.2020.63.1.19.

Treatment of gestational diabetes diagnosed by the IADPSG criteria decreases excessive fetal growth

  • 1Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University, Seoul, Korea.
  • 2Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
  • 3Department of Obstetrics and Gynecology, Samsung Medical Center, Seoul, Korea.
  • 4Department of Obstetrics and Gynecology, Ajou University School of Medicine, Suwon, Korea.
  • 5Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea.
  • 6Department of Internal Medicine, Institute of Health and Environment, Seoul National University, Seoul, Korea.
  • 7Department of Obstetrics and Gynecology, MizMedi Hospital, Seoul, Korea. obdrmhk@naver.com


We evaluated the effect on treatment using the new International Association of Diabetes and Pregnancy Study Group (IADPSG) criteria for gestational diabetes mellitus (GDM) diagnosis.
Singleton pregnant women whose plasma glucose levels were ≥140 mg/dL on the 50 g glucose challenge test (GCT) underwent 75 g oral glucose tolerance for GDM diagnosis. During the first half of the study period, GDM was diagnosed using 2 abnormal values by Carpenter-Coustan (C-C) criteria. In the second half of the study period, 1 or more abnormal values by IADPSG criteria were used for GDM diagnosis. Pregnant women were classified into 5 groups: normal 50 g GCT, positive 50 g GCT but non-GDM, GDM by IADPSG criteria and non-treated, GDM by IADPSG criteria and treated, GDM by C-C criteria and treated. The odds ratios (ORs) for large for gestational age (LGA) and macrosomia were analyzed.
Of the 2,678 patients, the frequency of GDM diagnosed by C-C and IADPSG criteria was 2.6% and 7.5%. ORs (95% confidence intervals [CIs]) for LGA and macrosomia in the group with GDM by IADPSG criteria and non-treated were 2.81 (95% CI, 1.47-5.38) and 2.84 (95% CI, 1.08-7.47). The risk of LGA and macrosomia did not increase in the group with GDM by IADPSG criteria and treated.
The risk of LGA and macrosomia for mild GDM diagnosed solely by IADPSG criteria depends on whether they are treated or not. Treatment of GDM based on IADPSG criteria reduces the risk of excessive fetal growth. Trial Registration Clinical Research Information Service Identifier: KCT0000776


Gestational diabetes; Criteria; Treatment

MeSH Terms

Blood Glucose
Diabetes, Gestational*
Fetal Development*
Gestational Age
Glucose Tolerance Test
Information Services
Odds Ratio
Pregnant Women
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