P. Jakobi, I. Solt, A. Weissman
A 2 hour versus the 3 hour 100 g glucose tolerance test for diagnosing gestational diabetes mellitus
Aim: To determine how the omission of the third hour
glucose measurement of the 100 g oral glucose tolerance
test (GTT) affects the diagnosis of gestational diabetes
mellitus (GDM).
Methods: Retrospective chart review of 876 women
delivered in a tertiary care hospital in Israel during a
three-year period, who underwent a 100 g 3 hour oral
GTT following an abnormal 50 g glucose screen. GDM
was diagnosed according to the “criterion standard”
accepted in the Fourth International Workshop Conference
on GDM. The results of the 100 g 3 hour oral GTT
were then retrospectively re-evaluated by omission of the
third hour plasma glucose measurement from the “criterion
standard”.
Results: GDM was diagnosed in 28.4% of the study
patients, while the omission of the third hour glucose
measurement resulted in a 26.4% diagnosis of GDM. The
perinatal data of the 18-omitted cases suggests that their
exclusion from the GDM group would not have altered
substantially the perinatal outcome of the study cohort.
Conclusions: A 100 g 2 hour oral GTT is a simple and
economic alternative to the 100 g 3 hour oral GTT.
Journal of Perinatal Medicine, Walter de Gruyter
Print ISSN: 1619-3997
Volume: 32, 07/2004
Pages: 320 - 322
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