Materials and methods
Materials
This retrospective observational study involved the collection
of all medical records from the 8014 pregnancies that
were administered a 50-g GCT at 24e28 weeks of gestation
and were delivered at Chia-Yi Christian Hospital (CYCH)
between March 2006 and June 2011. Cases of multifetal
pregnancies, prepregnancy diabetes and incomplete 100-g
OGTT results were excluded (n ¼ 136) from this study. This
study was approved by the institutional human studies committee
at CYCH (institutional review board number: 100006).
Owing to the study design of the retrospective medical chart
review, the committee was in agreement that informed consent
from each participant was not necessary.