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Related Experiment Videos

Cigarette smoking associated with delayed conception.

D D Baird, A J Wilcox

    JAMA
    |May 24, 1985
    PubMed
    Summary
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    Women who smoke experience reduced fertility. This study found smokers were less likely to conceive quickly and had 72% of the fertility rate of nonsmokers, highlighting smoking as a reproductive hazard.

    Area of Science:

    • Epidemiology
    • Reproductive Health
    • Toxicology

    Background:

    • Cigarette smoking is a widespread habit with known adverse health effects.
    • The impact of smoking on female fertility requires further investigation.
    • Reproductive hazards associated with smoking necessitate comprehensive understanding.

    Purpose of the Study:

    • To investigate the association between smoking and female fertility.
    • To quantify the effect of smoking on time to conception.
    • To determine if smoking is an independent risk factor for reduced fertility.

    Main Methods:

    • Epidemiologic study involving 678 pregnant women.
    • Data collection on smoking history and conception cycles.
    • Statistical analysis using Cox proportional hazards regression.

    Related Experiment Videos

    Main Results:

    • Smokers had a lower conception rate in the first cycle (28%) compared to nonsmokers (38%).
    • Smokers were 3.4 times more likely to take over a year to conceive.
    • Fertility of smokers was estimated at 72% of nonsmokers; heavy smokers had lower fertility (57%) than light smokers (75%).

    Conclusions:

    • Evidence suggests reduced fertility is a reproductive hazard of cigarette smoking.
    • Female smoking status significantly impacts conception rates and time to pregnancy.
    • Husband's smoking status did not affect female fertility in this study.