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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Measure of risk calculated from case-control study is -
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The correct answer is  It's the measure of the strength of association between risk factor and outcome The disease being investigated must be relatively rare The cases must be representative of those with the disease The controls must be representatives of those without the disease Ref: 25th edition, Park's Textbook of Preventive and Social Medicine, Page no. 81