> I don't think that counts as part of the "use effectiveness rate", which AFAIK are only those who (claimed to?) have used one but failed. It actually (usuall

> I don't think that counts as part of the "use effectiveness rate", which AFAIK are only those who (claimed to?) have used one but failed. It actually (usually) is, because that's a really important part of the effectiveness of a method. That's why I added the part about abstinence - it might work if you're consistent and committed about it, but people still decide not to use it as a method. If someone invented a condom that had a 100% perfect-use effectiveness rate, but it also made sex uncomfortable to the point that people decide not to use it most of the time even when it's available, it's real-world effectiveness would be low. And that's the important number to measure.