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Smoking in pregnancy and subsequent child development

N R Butler, H Goldstein

    British Medical Journal
    |December 8, 1973
    PubMed

    Insights

    Maternal smoking during pregnancy is linked to developmental deficits in children. Increased cigarette consumption after the fourth month of pregnancy correlates with greater physical and cognitive impairments in offspring.

    Area of Science:

    • Pediatric Health
    • Developmental Psychology
    • Public Health

    Background:

    • Maternal smoking during pregnancy is a significant public health concern.
    • The impact of prenatal smoke exposure on child development requires further longitudinal investigation.

    Purpose of the Study:

    • To assess the long-term physical and cognitive effects of maternal smoking during pregnancy on children.
    • To determine if the quantity of cigarettes smoked influences the severity of developmental deficits.

    Main Methods:

    • Longitudinal study following a national sample of several thousand children from birth.
    • Assessment of physical growth and cognitive abilities (reading, mathematics, general ability) at ages 7 and 11 years.
    • Statistical analysis accounting for associated social and biological factors.

    Main Results:

    • Prenatal exposure to maternal smoking is associated with physical and mental retardation in children at ages 7 and 11.
    • A dose-response relationship was observed: higher maternal cigarette consumption after the fourth month of pregnancy led to greater deficits.
    • Children of mothers smoking 10+ cigarettes daily were, on average, 1.0 cm shorter and 3-5 months behind in cognitive skills compared to non-smokers' offspring.

    Conclusions:

    • Maternal smoking during pregnancy has detrimental, measurable effects on child development.
    • The findings highlight the critical importance of smoking cessation during pregnancy for optimal child outcomes.
    • Public health initiatives should focus on reducing smoking rates among pregnant women.

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