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KMID : 1011720200130010013
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International Journal of Thyroidology
2020 Volume.13 No. 1 p.13 ~ p.18
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Antenatal Thyroid Function Does Not Increase Risk of Gestational Diabetes Mellitus in a Multi-Ethnic Pregnancy Cohort
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Muir Christopher Alan
Munsif Ashish
Blaker Kenrick
Feng Yvonne
D’Souza Mario
Tewari Shailja
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Abstract
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Background and Objectives: Subclinical hypothyroidism in pregnancy has been inconsistently associated with an increased risk of developing gestational diabetes mellitus (GDM).
Materials and Methods: We retrospectively examined whether an antenatal thyroid stimulating hormone (TSH) level ≥2.5 mIU/L was associated with increased risk of GDM in 1147 pregnant women residing in a multi-ethnic suburban area of Sydney, Australia.
Results: Despite a high prevalence of GDM and hypothyroidism in our study, women with antenatal TSH concentrations ≥2.5 mIU/L were not at increased risk for development of gestational diabetes. Traditional risk factors for GDM, such as maternal body mass index, ethnicity, previous GDM pregnancy and family history of type 2 diabetes were significant predictors of incident GDM on multivariable analyses.
Conclusion: Mild elevations in antenatal TSH concentration did not significantly increase risk of incident GDM compared to healthy euthyroid women.
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KEYWORD
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Gestational diabetes, Hypothyroidism, Pregnancy, Maternal health, Antenatal screening
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