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Related Experiment Videos

The mathematics of repeat abortion: explaining the increase

C Tietze, A K Jain

    Studies in Family Planning
    |December 1, 1978
    PubMed
    Summary
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    Following abortion legalization, repeat abortion rates are expected to increase significantly. Mathematical models show this trend is normal and does not indicate reduced contraceptive use.

    Area of Science:

    • Reproductive Health
    • Demography
    • Mathematical Modeling

    Background:

    • Legalization of abortion can impact reproductive behaviors.
    • Understanding repeat abortion trends is crucial for public health.
    • Previous assumptions linked abortion access to decreased contraception use.

    Purpose of the Study:

    • To analyze repeat abortion trends following legalization.
    • To model the relationship between abortion legalization and repeat abortion rates.
    • To assess the impact of abortion availability on contraceptive practices.

    Main Methods:

    • Analysis of repeat abortion data for women aged 15-44.
    • Utilized simple mathematical models.
    • Assumed constant and independent abortion risk over time.

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    Main Results:

    • Anticipated increase in the proportion of repeat abortions post-legalization.
    • Repeat abortion rate expected to exceed the first-abortion rate.
    • Model data explains rising repeat abortion percentages and rates.

    Conclusions:

    • Increased repeat abortion is a predictable outcome of legalization.
    • Mathematical models support these findings.
    • Widely available abortion does not discourage contraception.