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Relationship between condom strength and failure during use

M J Free, E W Skiens, M M Morrow

    Contraception
    |July 1, 1980
    PubMed
    Summary
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    Condom strength significantly decreases with UV exposure, leading to higher breakage rates during use. However, condoms maintain a safety margin even after some deterioration, suggesting stored condoms may still be usable if uniform.

    Area of Science:

    • Materials Science
    • Public Health

    Background:

    • Condom integrity is crucial for preventing unintended pregnancies and sexually transmitted infections.
    • Understanding the impact of environmental factors on condom performance is essential for public health.

    Purpose of the Study:

    • To investigate the correlation between condom strength degradation due to ultraviolet (UV) light exposure and in-use failure rates.
    • To assess the reliability of air burst tests in measuring changes in condom strength.

    Main Methods:

    • Six volunteers used artificially deteriorated condoms.
    • Condom samples were exposed to UV light for 3-11 hours.
    • Air burst tests measured burst pressure and volume; remaining condoms were used in vivo.

    Main Results:

    Keywords:
    Barrier MethodsClinical ResearchCondomContraceptionContraceptive EffectivenessContraceptive MethodsFamily PlanningHuman VolunteersResearch MethodologyUse-effectiveness--statistics

    Related Experiment Videos

    • UV exposure significantly reduced condom strength; burst pressure dropped to 35% and burst volume to 17% after 6 hours.
    • A mean breakage rate of 30% was observed after 6 hours of UV exposure, with individual rates reaching 70%.
    • Condom failure during use occurred only after more than 25% deterioration.

    Conclusions:

    • Air burst tests effectively measure changes in condom strength.
    • Condoms manufactured to Western standards possess a substantial strength margin beyond minimum requirements.
    • Uniformly deteriorated stored condoms may remain effective if their strength is consistent.