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Ectopic pregnancy in relation to previous induced abortion.

J R Daling, W H Chow, N S Weiss

    JAMA
    |February 15, 1985
    PubMed
    Summary

    This study found a modest increase in ectopic pregnancy risk after induced abortion, but the association may be due to chance. Larger studies are needed to confirm findings on abortion and ectopic pregnancy risk.

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    The relationship of placenta previa and history of induced abortion.

    International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics·2003

    Area of Science:

    • Reproductive Health
    • Obstetrics & Gynecology
    • Public Health

    Background:

    • Ectopic pregnancy poses significant health risks to women.
    • The relationship between induced abortion and subsequent ectopic pregnancy requires further investigation.

    Purpose of the Study:

    • To assess the risk of ectopic pregnancy following induced abortion.
    • To compare this risk among women with varying abortion histories.

    Main Methods:

    • Case-control study involving women hospitalized for ectopic pregnancy and women delivering live births.
    • Interviews conducted to gather data on induced abortion history.

    Main Results:

    • A modest, potentially chance-related increase in ectopic pregnancy risk was observed for women with a history of induced abortion (RR, 1.4; 95% CI, 0.7-2.6).

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  • Women with two or more abortions showed a slightly higher relative risk (RR, 1.8; 95% CI, 0.5-7.1).

    • Conclusions:

    • Legal abortion in the U.S. does not appear to carry a large excess risk for future ectopic pregnancy.
    • Further research with larger sample sizes is necessary to precisely determine the magnitude of any existing excess risk.