In the classic Westrom cohort following women after laparoscopically confirmed pelvic inflammatory disease, the approximate cumulative rate of infertility after THREE episodes of PID is:

• A About 12 percent
• B About 25 percent
• C About 75 percent
• D About 50 percent ✓

Explanation

Westrom's landmark Swedish cohort showed tubal infertility rising with each episode of PID: roughly 11 percent after one episode, about 23 percent after two, and approximately 54 percent after three episodes. This dose-response relationship between repeated episodes and tubal damage is the standard figure quoted in textbooks and exams. Twelve percent corresponds to a single episode, and 75 percent overstates even severe recurrent disease.

Reference: Williams Gynecology, 4th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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