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Related Experiment Videos

Caffeine intake and low birth weight: a population-based case-control study

I S Santos1, C G Victora, S Huttly

  • 1Pós-Graduação em Epidemiologia, Universidade Federal de Pelotas, Brazil.

American Journal of Epidemiology
|April 29, 1998
PubMed
Summary
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Maternal caffeine intake during pregnancy did not significantly impact birth weight, preterm births, or intrauterine growth retardation in this Brazilian study. Further research is needed to confirm these findings on pregnancy outcomes.

Area of Science:

  • Obstetrics and Gynecology
  • Perinatal Medicine
  • Nutritional Epidemiology

Background:

  • Low birth weight and intrauterine growth retardation are significant global health concerns.
  • Maternal diet, including caffeine consumption, may influence fetal development.
  • Understanding the impact of caffeine during pregnancy is crucial for public health recommendations.

Purpose of the Study:

  • To investigate the association between maternal caffeine intake during pregnancy and adverse birth outcomes.
  • To assess the effects of caffeine on birth weight, preterm birth, and intrauterine growth retardation.
  • To analyze caffeine consumption from various sources including coffee, maté, tea, chocolate, soft drinks, and medicines.

Main Methods:

  • A matched case-control study involving 1,205 mothers and newborns in Pelotas, Brazil.

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  • Cases defined as newborns with birth weight < 2,500 g and gestational age ≥ 28 weeks.
  • Maternal caffeine intake estimated per trimester using interviews, laboratory analysis of beverages, and reference tables.

    • Main Results:

    • Crude analyses revealed no statistically significant effect of caffeine intake on low birth weight.
    • No association was found between maternal caffeine consumption and preterm births or intrauterine growth retardation.
    • Results remained consistent after adjusting for potential confounding factors.

    Conclusions:

    • Maternal caffeine intake during pregnancy does not appear to be a significant risk factor for low birth weight, preterm birth, or intrauterine growth retardation in this population.
    • The findings suggest that moderate caffeine consumption may not adversely affect fetal growth and development.
    • Further research with larger sample sizes and diverse populations is warranted to confirm these results.