| Pearl index |
The Pearl Index, also called the Pearl rate, is a technique used in clinical trials for measuring the effectiveness of a birth control method. It is calculated by dividing the number of unintended pregnancies by the number of months of use of the particular method whose efficacy is being measured, and multiplying the result by 1200. ...
출처: en.wikipedia.org/wiki/Pearl_Index
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| Pearl index |
A statistical measurement of contraceptive effectiveness, showing the number of pregnancies per 100 women-years of use. ie how may women would get pregnant if 100 women used a given method of family planning for one year.
출처: www.fertilityuk.org/nfps02.html
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