ArticleActa obstetricia et gynecologica Scandinavica2025
Perinatal and neonatal outcomes in gestational diabetes: The importance of the number of abnormal values in an oral glucose tolerance test.
Article in Acta obstetricia et gynecologica Scandinavica, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Cohort Profile Update: The Finnish Gestational Diabetes (FinnGeDi) study.International journal of epidemiology · 2026Article
- Perinatal outcomes in pregnancies with one abnormal oral glucose tolerance test value: a retrospective cohort study.Journal of the Turkish German Gynecological Association · 2026Article
- Identification of gestational diabetes mellitus in European electronic healthcare databases: insights from the ConcePTION project.BMJ open · 2025Article
- Associations of early pregnancy high-sensitivity C-reactive protein levels with subsequent gestational diabetes: A Finnish gestational diabetes study.Diabetology & metabolic syndrome · 2025Article
- Perinatal and neonatal outcomes in gestational diabetes: The importance of the number of abnormal values in an oral glucose tolerance test.Acta obstetricia et gynecologica Scandinavica · 2025Article
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12 authors.
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Abstract
introductionGestational diabetes mellitus (GDM) is defined by one or more abnormal values in an oral glucose tolerance test (OGTT). The significance/importance of the number of abnormal values in relation to adverse perinatal and neonatal outcomes is unclear. We assessed the association of these outcomes with the number of abnormal glucose values in a 2-h 75 g OGTT in a large register-based cohort. MATERIAL AND
methodsThis sub-study of the Finnish Gestational Diabetes Study was based on the Finnish Medical Birth Register 2009 supplemented with OGTT laboratory data of 4869 pregnant women from six Finnish hospitals. The diagnostic cut-offs in OGTT according to the Finnish guidelines for plasma samples were ≥5.3 mmol/L (fasting), ≥10.0 mmol/L 1 h or ≥8.6 mmol/L 2 h after the glucose load. As per the guidelines, women with one or several abnormal OGTT values received diet and lifestyle counseling in the primary care, self-monitored their glucose values and received pharmacological therapy as needed. Women with GDM were categorized according to the number of abnormal glucose values. The primary outcomes, composites of adverse perinatal (pre-eclampsia, preterm delivery, macrosomia or primary cesarean section) and neonatal outcomes (birth trauma, neonatal hypoglycemia, hyperbilirubinemia or stillbirth/perinatal mortality), were analyzed by logistic regression adjusted for maternal age, pre-pregnancy body mass index, parity, socio-economic status and smoking.
resultsOf all the women, 877 (18.0%) had one, 278 (5.7%) two and 79 (1.6%) three abnormal OGTT values, while 3635 (74.7%) women were normoglycemic. Women with at least two abnormal OGTT values had higher proportions of adverse perinatal composite (35.0% vs. 27.5%, adjusted odds ratio 1.36; 95% confidence interval 1.03-1.81) and neonatal composite outcomes (31.1% vs. 18.9%, adjusted odds ratio 1.88; 95% confidence interval 1.40-2.52) compared to women with one abnormal value. The risks of delivery induction and neonatal hypoglycemia were increased regardless of the number of abnormal values when compared with normoglycemic women.
conclusionsThe risk of adverse perinatal and neonatal outcomes is significantly higher in women with two or more abnormal OGTT values than in those with one abnormal value.
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