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Anencephalus in Scotland 1961-72

J Fedrick

    British Journal of Preventive & Social Medicine
    |June 1, 1976
    PubMed
    Summary

    Anencephalus incidence in Scotland showed geographical variations and an overall decline from 1961-72. Declines were most significant in younger mothers and lower social classes, with notable yearly fluctuations.

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    Area of Science:

    • Medical Statistics
    • Epidemiology
    • Public Health

    Background:

    • Anencephalus (a severe birth defect) incidence data from Scotland (1961-1972) were analyzed.
    • Previous studies indicated geographical and temporal variations in anencephalus rates.

    Purpose of the Study:

    • To investigate geographical and temporal trends in anencephalus incidence in Scotland.
    • To identify demographic factors associated with changes in anencephalus rates.

    Main Methods:

    • Data abstracted from Statistical Reviews of the Registrar General for Scotland (1961-1972).
    • Analysis of incidence rates by geographical region, maternal age, and social class.
    • Statistical examination of temporal fluctuations and seasonal variations.

    Main Results:

    • Significant geographical variation persisted, with lower incidences in the Highlands.
    • An overall decline in anencephalus incidence was observed over the 12-year period.
    • Declines were most pronounced in younger mothers (<20 years) and lower social classes (III-V), with yearly fluctuations showing an excess in 1961 and 1971.

    Conclusions:

    • Anencephalus incidence in Scotland exhibits persistent geographical disparities.
    • Socioeconomic and age-related factors influenced the declining trend of anencephalus.
    • Further investigation into the causes of yearly fluctuations is warranted.

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