Everywhere I find on the internet says that condoms, when used properly and don’t break, are only 98% effective.
That means if you have sex once a week you’re just as well off as having no protection once a year.
Are 2% of condoms randomly selected to have holes poked in them?
What’s going on?
In: Biology
Birth control statistics are based on 13 cycles (one year) of a couple using only that birth control method, theoretical and actual. Not even tubal ligation (tubes tied) or vasectomy are 100% full proof, nature finds a way.
Theoretical effectiveness would account for device error, while actual effectiveness is human error. Human error would include not using the condom, putting it on wrong, etc. Theoretic would be condoms breaking, among other things. For condoms, effectiveness is 98% in theory, 92% in practice, meaning human error is more common than device error.
Cycle watching can reduce the error rate, but nothing is 100% effective.
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