[The influence of moderate intrauterine nutrition on later physical and mental development in twins (author's

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R Schmidt, K Schreier

    Monatsschrift Fur Kinderheilkunde
    |February 1, 1978
    PubMed

    Insights

    Significant birth weight differences impact physical and mental development in twins. However, a positive home environment can mitigate these effects on psychosocial behavior and school performance.

    Area of Science:

    • Developmental Psychology
    • Twin Studies
    • Pediatrics

    Background:

    • Birth weight is a critical factor influencing early development.
    • Twin studies offer a unique model to disentangle genetic and environmental influences.
    • Understanding developmental trajectories in relation to birth weight is crucial for early intervention.

    Purpose of the Study:

    • To investigate the impact of birth weight differences on physical and mental development in twins.
    • To identify a critical birth weight threshold affecting developmental outcomes.
    • To assess the role of the home environment in moderating these effects.

    Main Methods:

    • Follow-up examinations of 45 dizygotic and monozygotic twin pairs.
    • Assessment of physical development (height, head circumference).
    • Evaluation of mental abilities, psychosocial behavior, and school performance.

    Main Results:

    • A birth weight difference of at least 650g was associated with lower scores in mental abilities, height, and head circumference for the lower birth weight twin.
    • Despite significant birth weight disparities, no differences were observed in psychosocial behavior and school performance between the groups.
    • Positive home environment factors were identified as key in normalizing development.

    Conclusions:

    • Birth weight significantly influences early physical and mental development in twins.
    • A supportive home environment plays a vital role in overcoming developmental disadvantages associated with low birth weight.
    • Early childhood interventions should consider both biological and environmental factors.

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