Objective : To assess the prevalence of GDM in GCT screened women at Maharaj Nakorn Chiang Mai Hospital.
Study design : Retrospective descriptive study.
Setting : Department of Obstetric and Gynecology, Maharaj Nakorn Chiang Mai Hospital.
Material and Method : One thousand pregnant women who attended the antenatal care clinic and delivered at Maharaj Nakorn Chiang Mai Hospital from October 2001 to December 2002 were recruited into the study. Glucose challenge test (GCT), 50-g glucose oral load with 1-hr plasma glucose measurement, was performed in GDM high-risk pregnancies. If GCT was positive, oral glucose tolerance test (OGTT), 100-g glucose orally, was done to confirm the final diagnosis. All relevant data including demographic information, previous obstetric history, risk factors for GDM, GCT and OGTT results and pregnancy outcomes were collected for further statistical analysis.