title: A predictor of small-for-gestational-age infant: oral glucose challenge test.
abstract: OBJECTIVE
  This 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.
  
  
  METHODS
  We 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.
  
  
  RESULTS
  First-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).
  
  
  CONCLUSIONS
  Our 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.
authors.affiliation: Department of Obstrectic and Gynecology, Sami Ulus Medical and Research Hospital, 34090, Ankara, Turkey, yaseminkandicekmez@hotmail.com.
authors.forename: Y
authors.initials: Y
authors.lastname: Cekmez
authors.forename: E
authors.initials: E
authors.lastname: Ozkaya
authors.forename: F D
authors.initials: FD
authors.lastname: Öcal
authors.forename: N
authors.initials: N
authors.lastname: Süer
authors.forename: T
authors.initials: T
authors.lastname: Küçüközkan
mesh_terms: D000328:Adult; D001724:Birth Weight; D001786:Blood Glucose / Q000032:analysis*; D005215:Fasting / Q000097:blood; D005260:Female; D005865:Gestational Age; D005951:Glucose Tolerance Test; D006801:Humans; D007231:Infant, Newborn; D007236:Infant, Small for Gestational Age; D008297:Male; D011237:Predictive Value of Tests; D011247:Pregnancy; D012680:Sensitivity and Specificity; D055815:Young Adult
chemical_list: D001786:Blood Glucose