A commonly used measurement of the effectiveness of contraception is the Pearl index. A Pearl index of 10 means that if 100 women are treated with a contraceptive for 1 year, 10 of them will become pregnant. Which of the following is the Pearl index that indicates that a method of contraception never fails to prevent pregnancy?

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Quizplus · Accepted Answer

An ideal contraceptive would never allow any treated patient to become pregnant. A Pearl index of 0 would signify that if 100 women were treated with a contraceptive for a year, none of them would become pregnant.

A Commonly Used Measurement of the Effectiveness of Contraception Is