MRCPsych Paper B Practice Questions - MRCPsych Paper B Exam

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A randomised controlled trial reports that an antidepressant reduces the absolute risk of relapse from 40% to 25% over 12 months. What is the number needed to treat (NNT) to prevent one relapse?

About 7 About 4 About 15 About 2

Correct Answer:

About 7

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