Neurodevelopment, vision and auditory outcomes at age 2 years in offspring of participants in the 'Women First' maternal preconception nutrition randomised controlled trial

Arch Dis Child. 2023 Aug;108(8):622-631. doi: 10.1136/archdischild-2023-325352. Epub 2023 May 4.

Abstract

Background: Maternal nutrition in preconception and early pregnancy influences fetal growth. Evidence for effects of prenatal maternal nutrition on early child development (ECD) in low-income and middle-income countries is limited.

Objectives: To examine impact of maternal nutrition supplementation initiated prior to or during pregnancy on ECD, and to examine potential association of postnatal growth with ECD domains.

Design: Secondary analysis regarding the offspring of participants of a maternal multicountry, individually randomised trial.

Setting: Rural Democratic Republic of the Congo, Guatemala, India and Pakistan.

Participants: 667 offspring of Women First trial participants, aged 24 months.

Intervention: Maternal lipid-based nutrient supplement initiated preconceptionally (arm 1, n=217), 12 weeks gestation (arm 2, n=230) or not (arm 3, n=220); intervention stopped at delivery.

Main outcome measures: The INTERGROWTH-21st Neurodevelopment Assessment (INTER-NDA) cognitive, language, gross motor, fine motor, positive and negative behaviour scores; visual acuity and contrast sensitivity scores and auditory evoked response potentials (ERP). Anthropometric z-scores, family care indicators (FCI) and sociodemographic variables were examined as covariates.

Results: No significant differences were detected among the intervention arms for any INTER-NDA scores across domains, vision scores or ERP potentials. After adjusting for covariates, length-for-age z-score at 24 months (LAZ24), socio-economic status, maternal education and FCI significantly predicted vision and INTER-NDA scores (R2=0.11-0.38, p<0.01).

Conclusions: Prenatal maternal nutrition supplementation was not associated with any neurodevelopmental outcomes at age 2 years. Maternal education, family environment and LAZ24 predicted ECD. Interventions addressing multiple components of the nurturing care model may offer greatest impact on children's developmental potential.

Trial registration number: NCT01883193.

Keywords: child development; growth.

Publication types

  • Randomized Controlled Trial
  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anthropometry
  • Child
  • Child Development*
  • Child, Preschool
  • Dietary Supplements*
  • Female
  • Gestational Age
  • Humans
  • Infant
  • Poverty
  • Pregnancy

Associated data

  • ClinicalTrials.gov/NCT01883193