What is the efficacy rate for emergency contraception when used within 72 hours?

Question

Quizplus · Accepted Answer

The efficacy rate for emergency contraception when used within 72 hours is approximately 90%. This means that out of 100 women who use emergency contraception within 72 hours of unprotected sex or contraceptive failure, 90 will not become pregnant. It is important to note that the efficacy rate decreases with time after unprotected sex or contraceptive failure, and emergency contraception should be used as soon as possible for the best chance of effectiveness.

What Is the Efficacy Rate for Emergency Contraception When Used