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Identifying Prenatal and Postnatal Determinants of Infant Growth: A Structural Equation Modelling Based Cohort Analysis

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Listed:
  • Kelly Morgan

    (School of Social Sciences, Cardiff University, Cardiff CF14 4YS, UK)

  • Shang-Ming Zhou

    (Centre for Health Technology, Faculty of Health, University of Plymouth, Plymouth PL4 8AA, UK)

  • Rebecca Hill

    (WHO Collaborating Centre on Investment for Health and Well-Being, Public Health Wales, Cardiff CF10 4BZ, UK)

  • Ronan A. Lyons

    (Health Data Research UK, Institute of Life Science, Swansea University, Swansea SA2 8PP, UK)

  • Shantini Paranjothy

    (School of Medicine and Dentistry, University of Aberdeen, Aberdeen AB25 2ZD, UK)

  • Sinead T. Brophy

    (Health Data Research UK, Institute of Life Science, Swansea University, Swansea SA2 8PP, UK)

Abstract

Background: The growth and maturation of infants reflect their overall health and nutritional status. The purpose of this study is to examine the associations of prenatal and early postnatal factors with infant growth (IG). Methods: A data-driven model was constructed by structural equation modelling to examine the relationships between pre- and early postnatal environmental factors and IG at age 12 months. The IG was a latent variable created from infant weight and waist circumference. Data were obtained on 274 mother–child pairs during pregnancy and the postnatal periods. Results: Maternal pre-pregnancy BMI emerged as an important predictor of IG with both direct and indirect (mediated through infant birth weight) effects. Infants who gained more weight from birth to 6 months and consumed starchy foods daily at age 12 months, were more likely to be larger by age 12 months. Infant physical activity (PA) levels also emerged as a determinant. The constructed model provided a reasonable fit ( χ 2 (11) = 21.5, p < 0.05; RMSEA = 0.07; CFI = 0.94; SRMR = 0.05) to the data with significant pathways for all examined variables. Conclusion: Promoting healthy weight amongst women of child bearing age is important in preventing childhood obesity, and increasing daily infant PA is as important as a healthy infant diet.

Suggested Citation

  • Kelly Morgan & Shang-Ming Zhou & Rebecca Hill & Ronan A. Lyons & Shantini Paranjothy & Sinead T. Brophy, 2021. "Identifying Prenatal and Postnatal Determinants of Infant Growth: A Structural Equation Modelling Based Cohort Analysis," IJERPH, MDPI, vol. 18(19), pages 1-13, September.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:19:p:10265-:d:646629
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    References listed on IDEAS

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    1. Mary Kay Fox & Susan Pac & Barbara Devaney & Linda Jankowski, "undated". "Feeding Infants and Toddlers Study: What Foods are Infants and Toddlers Eating?," Mathematica Policy Research Reports 58135004771244b68971cfb96, Mathematica Policy Research.
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