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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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Relative risk formula(2018)
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The correct answer is  Estimation of disease risk associated with exposure is obtained by an index known as "Relative Risk" (RR) or '"risk ratio" , which is defined as the ratio between the incidence of disease among exposed persons and incidence among non-exposed. It is given by the formula: Incidence among exposed/ incidence among non exposed. Ref:- park; pg num :- 81