Korean J Obstet Gynecol.  1998 Oct;41(10):2588-2592.

Influence of Diagnostic Criteria on The Incidence of Gestational Diabetes and Pregnancy Outcomes

• Nam J
• Kim SJ
• Kim YO
• Hur SY
• Lee GS
• Kang GS
• Lee Y
• Kim EJ
• Song SK
• Lee CK
• Kim SP

Abstract

OBJECTIVE
To determine the incidence of gestational diabetes mellitus and relationship between birth weight and mode of delivery by two sets of 3-hour glucose tolerance test criteria, those recommended by the National Diabetes Data Group (NDDG) and Carpenter and Coustan criteria (Coustan).
METHODS
Between January 1996 and December 1997 from Holy Family hospital of Catholic Medical College, a total of 1384 pregnant women were screened for a plasma glucose of 140mg/dl or greater.223 positive subjects received a 3-hour glucose tolerance test interpreted by the two criteria.Data are presented for 158 (17 were lost of F-U) positive screen, negative glucose tolerance test subjects; 26 (2 were lost of F-U) subjects with untreated Coustan criteria; and 39 (3 were lost of F-U) subjects with treated GDM by NDDG.
RESULTS
1. Gestational diabetes mellitus incidence was 4.9% overall based on the Coustan criteria and 2.8% by the NDDG criteria. 2. Primary & total cesarean delivery, and preterm delivery in NDDG were increased significantly, Episiotomy was decreased when compared with normal group, but preterm delivery in Coustan was increased significantly. 3. There were no significant differences in episiotomy, macrosomia, large baby, cesarean deliveries, and pregnancy outcomes between the women with not-treated Caustan group and treated NDDG.
CONCLUSIONS
Our results indicate that the criteria of Carpenter and Caustan would overdiagnose Gestational Diabetes Mellitus without improving perinatal and pregnancy outcomes.

MeSH Terms

Birth Weight
Blood Glucose
Diabetes, Gestational*
Episiotomy
Female
Glucose Tolerance Test
Humans
Incidence*
Pregnancy
Pregnancy Outcome*
Pregnancy*
Pregnant Women