3 ms·
That's not how birth control effectiveness is measured. It's not measured per act of intercourse. Birth control effectiveness is measured by calculating the nu
by astura 2y ago
That's not how birth control effectiveness is measured. It's not measured per act of intercourse.
Birth control effectiveness is measured by calculating the number of pregnancies per 100 women using a specific method for a full calendar year.
https://www.who.int/news-room/fact-sheets/detail/family-planning-contraception https://www.who.int/news-room/fact-sheets/detail/family-plan...
>Effectiveness of methods is measured by the number of pregnancies per 100 women using the method per year.
- SoftTalker 2y agoIs that adjusted for frequency of intercourse? Can’t really compare a woman who has sex 10 times a year to one who’s having sex 20 times a month.
- Smithalicious 2y agoI assume the "per 100 women" part suffices to regress towards the mean
- scotty79 2y agoHow is it measured in mice and non-human primates?