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Contraception

Question
13 out of 53
 

Which of the following is correct for the calculation of Pearl index?



A No. of accidental pregnancies x 1200) I (No. of patients observed x months of use

B No. of accidental pregnancies x 1200) I (No. of patients observed x 2400

C No. of patients observed x months of use) I (No. of accidental pregnancies

D No. of patients observed x 2400) I (No. of accidental pregnancies x 2400

Ans. A

(No. of accidental pregnancies x 1200) I (No. of patients observed x months of use)

Pearl Index: Failure rate of any contraceptive is calculate din terms of pregnancy rate per hundred women years of use. It is calculated by following formula:

Number of accidental pregnancy x 1200

Pearl index = ------------------------------------------------------------

Number of patients observed x months of use

Here 1200 is the number of months in 100 years

Contraception Flashcard List

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