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[Twin deliveries (author's transl)].

W Maier

    Geburtshilfe Und Frauenheilkunde
    |April 1, 1978
    PubMed
    Summary

    Twin delivery rates in Bavaria significantly decreased from 15 per thousand (1920-1925) to 9 per thousand (1972-1976). Concurrently, same-sex twin births increased, while different-sex twin births declined.

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    Area of Science:

    • Demography
    • Reproductive Epidemiology
    • Perinatology

    Context:

    • Historical birth statistics from Bavaria (1920-1925 vs. 1972-1976).
    • Analysis of twin delivery trends over a 50-year period.
    • Examination of maternal age and parity in twin births.

    Purpose:

    • To compare twin delivery rates and characteristics between two distinct historical periods in Bavaria.
    • To identify changes in the incidence and sex composition of twin births.
    • To analyze demographic factors associated with twin pregnancies.

    Summary:

    • Twin delivery rates in Bavaria decreased from 15/1000 to 9/1000 between 1920-1925 and 1972-1976.
    • The proportion of same-sex twins (boys and girls) increased, while different-sex twins decreased.
    • Young primigravidas and older multigravidas represented the largest groups of twin mothers.

    Impact:

    • Provides insights into long-term trends in twinning.
    • Highlights shifts in reproductive patterns and outcomes.
    • Contributes to understanding demographic influences on twin births.

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