Abstract
Objective: Maternal thyroid peroxidase antibody (TPOAb) positivity has been associated with a variety of pregnancy complications and has potential neuropsychological developmental implications for the offspring. The aim of our study was to explore the effect of maternal TPOAb levels on emotional and behavioural problems in children.
Design: Cohort study
Participants: Based on the Maanshan Birth Cohort in China, 2464 mother-infant pairs were included in this study.
Measurements: Repeated blood samples were collected from pregnant women and TPOAb and FT4 were measured retrospectively by electrochemiluminescence immunoassay (ECLIA). The Strengths and Difficulties Questionnaire (SDQ) was used to assess the emotional and behavioural problems of 4-year-old preschoolers.
Results: After adjusting for potential confounders, maternal TPOAb positivity during the third trimester of pregnancy was found to be associated with an elevated risk of conduct problems in girls, with an OR of 2.190 (95% CI: 1.137 - 4.219). Conversely, maternal TPOAb positivity in the first trimester was linked to a decreased incidence of prosocial behavior in boys, with an OR of 0.451 (95% CI: 0.237 - 0.861).
Conclusions: Maternal TPOAb positivity during pregnancy may be associated with emotional and behavioral problems in preschool - aged children.
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