• Paediatr Perinat Epidemiol · Nov 2014

    Nausea and vomiting during pregnancy and neurodevelopmental outcomes in offspring.

    • Samantha E Parker, Jacqueline R Starr, Brent R Collett, Matthew L Speltz, and Martha M Werler.
    • Slone Epidemiology Center, Boston University, Boston, MA.
    • Paediatr Perinat Epidemiol. 2014 Nov 1; 28 (6): 527-35.

    BackgroundNausea and vomiting during pregnancy (NVP) is the most common complication of pregnancy. NVP has been associated with improved fetal outcomes, but its association with childhood neurodevelopmental outcomes has rarely been studied.MethodsSubjects were children aged 5-12 years (n = 560) who were controls in a previously conducted case-control study of prenatal risk factors for craniofacial malformations. Information on NVP, including trimester, duration, and treatment, was collected through a maternal interview conducted within 3 years of delivery. Neurocognition was assessed using the Peabody Picture Vocabulary Test (PPVT-III) and the Beery-Buktenica Test of Visual Motor Integration-Fifth Edition (VMI-5). Psychosocial outcomes, including internalising and externalising behaviour problems, were measured by maternal report, using the Child Behavior Checklist (CBCL), and teacher report, using the Teacher Report Form. Linear regression models were used to calculate adjusted mean (adjMD -3.04, 95% confidence interval (CI) -5.02, -1.06) differences (adjMD) and 95% confidence intervals [CI] on test scores for children exposed and unexposed to NVP in utero. Differences based on trimester, duration, and treatment were assessed.ResultsNVP was reported among 63% of women and was most common in early pregnancy. Children exposed to NVP performed worse on the VMI-5 [-3.04, 95% CI: -5.02, -1.06] but exhibited few other differences from unexposed children. Durations of NVP ≥4 months were associated with poorer scores on PPVT-III (adjMD -2.52), VMI-5 (adjMD -5.41), and CBCL [adjMD 3.38 (internalising) and adjMD 4.19 (externalising)].ConclusionsOverall, there were few differences between children exposed and unexposed to NVP. NVP was associated with slightly worse visual motor performance, and prolonged NVP and NVP extending late into pregnancy were associated with poorer scores on several neurodevelopmental measures.© 2014 John Wiley & Sons Ltd.

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