system
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.
user
Incidence of disease among exposed minus that of non exposed is equal to -
assistant
The correct answer is  Attributable risk indicates to what extent the disease under study can be attributed to the exposures. It is often expressed as a percent (refer pgno:78 park 23 rd edition)