Journal
PEDIATRIC RESEARCH
Volume 69, Issue 5, Pages 454-459Publisher
NATURE PUBLISHING GROUP
DOI: 10.1203/PDR.0b013e3182125b0c
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Funding
- European Community [212652]
- Erasmus Medical Center Rotterdam
- Erasmus University Rotterdam
- Netherlands Organization for Health Research and Development [ZonMw 10.000.1003]
- Ortho Clinical Diagnostics, Rochester, NY
- Jan Dekker/Ludgardine Bouwman Foundation
- Fa. Merck
- Foundation Zeist
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Maternal thyroid function during pregnancy is implicated in the neurodevelopment of the offspring, yet little is known about the effect of maternal thyroid parameters on the behavior of children. We investigated the association of maternal thyroid function during the first half of pregnancy with parent-reported problem behavior of the offspring up to age of 3 y. In the Generation R study, a population-based cohort of 3736 children and their mothers, data on maternal thyroid function and child's behavior were examined. The degree of internalizing and externalizing problems in the children were assessed with the Child Behavior Checklist at ages 1 1/2 and 3 y. Higher levels of maternal TSH during pregnancy predicted a higher externalizing scores in children at 1 1/2 and 3 y (B = 0.22 per SD of TSH; 95% CI: 0.04, 0.40; B = 0.10 per SD for internalizing scores; 95% CI: -0.01, 0.21). Maternal free thyroxine (T4) and total T4 were not associated with internalizing or externalizing scores of children. The linear relationship with more externalizing scores was across the range of TSH; this implies that subtle impairments of maternal thyroid function may affect the child. The results suggest that thyroid function is crucial for fetal brain development, which determines problem behavior later in life. (Pediatr Res 69: 454-459, 2011)
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