Maternal thyroid disease as a risk factor for craniosynostosis

Area of Science:

• Reproductive health
• Pediatric health
• Endocrinology

Background:

• Craniosynostosis is a birth defect involving the premature fusion of skull sutures.
• Maternal thyroid disease is a common condition affecting women of reproductive age.
• Existing research on the link between maternal thyroid disease and craniosynostosis is limited.

Purpose of the Study:

• To investigate the association between maternal thyroid disease and the occurrence of craniosynostosis in infants.
• To analyze data from the National Birth Defects Prevention Study, a large-scale case-control study.

Main Methods:

• A case-control study design was employed using data from the National Birth Defects Prevention Study.
• Case infants (n=431) with confirmed craniosynostosis were compared to control infants (n=4,094) without major birth defects.
• Maternal thyroid disease was determined by self-report of a diagnosed disorder or medication use during pregnancy.

Main Results:

• A higher prevalence of maternal thyroid disease was observed in mothers of infants with craniosynostosis (4.4%) compared to control mothers (1.6%).
• Maternal thyroid disease was significantly associated with craniosynostosis, with an adjusted odds ratio of 2.47 (95% CI 1.46-4.18) after controlling for maternal age.
• Maternal age was the only confounding factor that remained significant in the final logistic regression model.

Conclusions:

• The findings suggest a significant association between maternal thyroid disease and craniosynostosis.
• Graves' disease is a likely contributor to this association, though further research is needed.
• Given the prevalence of maternal thyroid disease, this association warrants continued investigation.