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Am J Perinatol 2021; 38(08): 841-847
DOI: 10.1055/s-0039-3402749
Original Article

A Low 50-gram, 1-hour Glucose Challenge Test Value Predicts Neonatal Birth Weight Less than the 10th Percentile: A Systematic Review and Meta-Analysis

Melanie Mitta
1   Department of Obstetrics and Gynecology, University of Florida College of Medicine, Jacksonville, Florida
,
Luis Sanchez-Ramos
2   Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Florida College of Medicine, Jacksonville, Florida
,
Jared T. Roeckner
2   Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Florida College of Medicine, Jacksonville, Florida
,
Stevie Bennett
1   Department of Obstetrics and Gynecology, University of Florida College of Medicine, Jacksonville, Florida
,
Andrew Kovacs
1   Department of Obstetrics and Gynecology, University of Florida College of Medicine, Jacksonville, Florida
,
Andrew M. Kaunitz
1   Department of Obstetrics and Gynecology, University of Florida College of Medicine, Jacksonville, Florida
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Abstract

Objective This study aimed to perform a systematic review with meta-analysis to investigate if women with a low 50-g, 1-hour glucose challenge test (GCT) value are at risk for having neonates with a birth weight less than the 10th percentile.

Study Design A computerized literature search was conducted to identify studies that compared outcomes of pregnant women with a low GCT value versus women with a normal GCT value during routine screening for gestational diabetes.

Results Sixteen cohort studies were included for analysis. Women with a low GCT value were noted to have a 43% increased odds of having neonates with birth weight less than the 10th percentile (odds ratio [OR]: 1.43; 95% confidence interval [CI]: 1.28–1.60) and 30% increased odds of having neonates with a birth weight less than 2,500 g (OR: 1.3; 95% CI: 1.0–1.7) when compared with women with a normal GCT value. The rates of preterm delivery, neonatal intensive care unit (NICU) admission, pregnancy-induced hypertension (PIH)/preeclampsia, respiratory distress, NICU, and Apgar scores less than 7 were similar in the two groups.

Conclusion A low GCT value defined as less than 90 mg/dL identifies pregnancies at elevated risk for having neonates with a birth weight less than the 10th percentile.

Keywords

glucose challenge test - maternal hypoglycemia - low birth weight - maternal and neonatal outcomes


Publication History

Received: 24 June 2019

Accepted: 02 December 2019

Article published online:
27 January 2020

© 2020. Thieme. All rights reserved.

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