This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Epidemiology, Subject name: Social & Preventive Medicine
[{'content': 'Best method to compare vital statistics of two populations- \nSelect and explain. \nA. Crude death rate, B. Age specific death rate, C. Age standardization death rate, D. Multivariate moality rate', 'role': 'user'}, {'content': 'Answer: C \nExplanation: ref: Park&;s 23rd edition pg 58 The advantage of age standardised death rate is that it removes the confounding effect of different age structures and yields a single standardised or adjusted rate, by which moality experience can be directly compared.', 'role': 'assistant'}]