This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'All are measurements of mortality except - \nSelect and explain. \nA. Crude death rate, B. Survival rate, C. Incidence, D. Case fatality rate', 'role': 'user'}, {'content': 'Answer: C \nExplanation: MEASUREMENT OF MORTALITY\n\nMost epidemiological studies begin with mortality data.\nThe commonly used measures for mortality are :-\n\n\nCrude death rate \xa0 \xa0 \xa0\xa0\nSpecific death rate\nProportional mortality rate\nSurvival rate\nCase fatality rate\nStandardized or adjusted rates', 'role': 'assistant'}]