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Trends in multiple births, 1938-1995

R Wood

    Population Trends
    |April 1, 1997
    PubMed
    Summary

    Multiple birth rates in England and Wales have changed significantly since 1938, with a notable increase since the mid-1970s. Maternal age is a key factor influencing these trends.

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    Area of Science:

    • Reproductive Health
    • Demography
    • Public Health Statistics

    Background:

    • Birth registration data in England and Wales since 1938 provides a historical record of multiple births.
    • Understanding trends in multiple births is crucial for public health planning and resource allocation.

    Purpose of the Study:

    • To describe changes and trends in the prevalence of multiple births in England and Wales from 1938 to the present.
    • To analyze geographical variations and social class differences in multiple birth incidence.
    • To identify key factors influencing the observed trends, particularly maternal age.

    Main Methods:

    • Analysis of national birth registration data from 1938 onwards.
    • Examination of trends in multiple birth prevalence over time.
    • Statistical analysis of geographical, social class, and maternal age factors.

    Main Results:

    • A significant increase in the incidence of multiple births has been observed since the mid-1970s.
    • Geographical variations and differences by social class in multiple birth rates have been identified.
    • Maternal age at childbirth is a significant determinant of changes in multiple birth rates since 1938.

    Conclusions:

    • The prevalence of multiple births has shown dynamic changes over the past decades.
    • Maternal age is a critical factor explaining the rise in multiple births.
    • Further research into the drivers of these trends is warranted.

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