Failure rate of contraceptive method is determined by
Correct Answer: Pearl index
Description: Two methods have been used to measure contraceptive efficacy: 1. Pearl index and 2. Life table analysis Pearl index is defined as the number of failure rates per 100 woman years of exposure Reference : Park&;s textbook of preventive and social medicine, 23rd edition, Page no: 510
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Social & Preventive Medicine
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