Severity of nausea and vomiting in pregnancy and early childhood neurobehavioural outcomes: The Growing Up in Singapore Towards Healthy Outcomes study.

TitleSeverity of nausea and vomiting in pregnancy and early childhood neurobehavioural outcomes: The Growing Up in Singapore Towards Healthy Outcomes study.
Publication TypeJournal Article
Year of Publication2020
AuthorsSyn NL, Chan S-Y, Chia EWan Ying, Ong WXin, Phua D, Cai S, Shek LPC, Chong Y-S, Daniel LMary, Broekman BFP, Godfrey KM, Meaney MJ, Law EC
JournalPaediatr Perinat Epidemiol
Date Published2020 Jun 23
ISSN1365-3016
Abstract

BACKGROUND: Nausea and vomiting of pregnancy (NVP) affects 50 to 80 per cent of women. The existing literature has examined NVP from the perspective of the mother, and relatively less is known about offspring outcomes.OBJECTIVES: To study the relationships of NVP with social-emotional, behavioural, and cognitive outcomes of the offspring in a multi-ethnic Asian cohort.METHODS: In the Growing Up in Singapore Towards Healthy Outcomes prospective mother-offspring cohort study, mothers responded to a structured NVP questionnaire at 26-28 weeks' gestation (n = 1172) and participants with severe NVP were confirmed using medical records. Children underwent multiple neurodevelopmental assessments throughout childhood. We conducted multivariable regressions with post-estimation predictive margins to understand the associations of NVP with offspring neurobehavioural outcomes, which included 1-year Infant-Toddler Social and Emotional Assessment, 1.5-year Quantitative Checklist for Autism in Toddlers, 2-year Bayley Scales of Infant and Toddler Development, 2- and 4-year Child Behavior Checklist, and 4.5-year Kaufman Brief Intelligence Test. Analyses were adjusted for household income, birth variables, maternal mental health, and other relevant medical variables. Cohen's d effect sizes were calculated using standardised mean differences (μ ).RESULTS: Mothers were categorised into no (n = 296, 25.3%), mild-moderate (n = 686, 58.5%), and severe NVP (n = 190, 16.2%), of whom 67 (5.7%) required admission. Compared to children of mothers who had no or mild-moderate NVP, children with exposure to severe NVP exhibited more externalising behaviours (μ 2.0, 95% CI 0.3, 3.6; Cohen's d = 0.33) and social communication difficulties before 2 years (μ 4.1, 95% Cl 0.1, 8.0; Cohen's d = 0.38), both externalising (μ 1.5, 95% CI 0.4, 2.6; Cohen's d = 0.43) and internalising behaviours at 2 years (μ 1.2, 95% CI 0.1, 2.2; Cohen's d = 0.35), and only internalising behaviours after 2 years (μ 1.1, 95% CI 0.4, 2.0; Cohen's d = 0.37).CONCLUSIONS: Severe NVP is highly prevalent in this Asian cohort and may be adversely associated with multiple offspring neurobehavioural outcomes.

DOI10.1111/ppe.12703
Alternate JournalPaediatr Perinat Epidemiol
PubMed ID32578237
Grant ListENeASEA-573651-EPP-1-2016-1-DE-EPPKA2-CBHE-JP / / European Union's Erasmus+ Programme Early Nutrition eAcademy Southeast Asia /
NMRC/TCR/004-NUS/2008 / / Singapore Ministry of Health's National Medical Research Council: MOH-TA18nov-0004 and Singapore National Research Foundation /
NMRC/TCR/012-NUHS/2014 / / Singapore Ministry of Health's National Medical Research Council: MOH-TA18nov-0004 and Singapore National Research Foundation /
MC_UU_12011/4 / / UK Medical Research Council /
/ / Singapore Institute for Clinical Sciences /
NF-SI-0515-10042 / / National Institute for Health Research /
/ / NIHR Southampton Biomedical Research /