I think a decent measure would be P(getting pregnant|one intercourse with condom)/P(getting pregnant|one intercourse without condom).
Do you really think the average person being/needing information about condoms can understand that?
If worded as “Using a condom reduces the chances of getting pregnant by X%” or “by N times”, probably.
I think a decent measure would be P(getting pregnant|one intercourse with condom)/P(getting pregnant|one intercourse without condom).
Do you really think the average person being/needing information about condoms can understand that?
If worded as “Using a condom reduces the chances of getting pregnant by X%” or “by N times”, probably.