MRCPsych Paper B Practice Questions - MRCPsych Paper B Exam

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A trial reports a relative risk of 0.70 with a 95% confidence interval of 0.45 to 1.10 for the effect of an intervention on hospital readmission. How should this result be interpreted?

A statistically significant 30% reduction in readmission A non-significant result because the confidence interval crosses 1 A statistically significant increase in readmission Insufficient data to comment on significance

Correct Answer:

A non-significant result because the confidence interval crosses 1

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