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Assessing birth weight-for-dates on a continuous scale

D G Altman, E C Coles

    Annals of Human Biology
    |January 1, 1980
    PubMed
    Summary
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    Mathematical models were applied to birth weight standards to create a continuous scoring system. This system allows individual infant weights to be assessed against expected values based on gestational age.

    Area of Science:

    • Perinatal medicine
    • Biostatistics
    • Growth monitoring

    Background:

    • Established birth weight standards are crucial for assessing infant health.
    • The Thomson, Billewicz, and Hytten (1968) standards are widely utilized.
    • A continuous scoring system can offer more nuanced assessment than discrete categories.

    Purpose of the Study:

    • To fit mathematical models to existing birth weight by gestational age standards.
    • To develop a method for scoring individual infant birth weights.
    • To provide a continuous scale for comparing infant weight to expected values.

    Main Methods:

    • Application of mathematical modeling techniques.
    • Utilizing the Thomson, Billewicz, and Hytten (1968) birth weight data.

    Related Experiment Videos

  • Developing a scoring algorithm based on standard deviations from the mean.

    • Main Results:

    • Mathematical models provided a close fit to the reference data.
    • A continuous scoring scale was successfully developed.
    • Individual infant weights can be precisely scored relative to gestational age expectations.

    Conclusions:

    • The fitted models accurately represent the birth weight standards.
    • The developed scoring system offers a valuable tool for perinatal assessment.
    • This method enhances the evaluation of infant growth trajectories.