• Y Cekmez, E Ozkaya, F D Öcal, N Süer, and T Küçüközkan.
• Department of Obstrectic and Gynecology, Sami Ulus Medical and Research Hospital, 34090, Ankara, Turkey, yaseminkandicekmez@hotmail.com.
• Ir J Med Sci. 2015 Jun 1; 184 (2): 285-9.

ObjectiveThis study was performed to investigate the role of first-hour 50-g oral glucose challenge test (GCT) parameters in predicting the risk of delivering a small-for-gestational-age infant and to determine the accuracy of estimated fetal weight.MethodsWe screened 2,643 pregnant women >20 years of age and excluded 552 patients according to exclusion criteria. Newborns were assigned to three groups as SGA(n:100), AGA(n:100), and LGA(n:100) according to birth weight. All mothers received 50-g GCT in their 24-28th weeks of gestation. We examined the relationship between birthweight and test results.ResultsFirst-hour serum glucose level after the test significantly predicted babies with small for gestational age. Optimal cutoff value was obtained at a level of 74.5 mg/dl with 67% sensitivity and 55% specificity. The estimated fetal weight of Hadlock 5 formula was strongly correlated with the birth weight (Pearson r = 0.89).ConclusionOur study revealed that 50-g oral glucose challenge test may predict small-for-gestational-age cases with 67% sensitivity, and our data revealed that there is a significant correlation between estimated fetal weight of Hadlock 5 formula and the birth weight.

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