You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is All are true of standardized moality ratio except: and explain in detail?
Expressed as rate per year Standardized moality ratio (SMR) = Expected death/ Observed deaths x 100 If the ratio had value greater than 100, the risk of moality rises. * SMR permit adjustment for age and it is of value if the event of interest is occurrence of disease rather than death. * Other standardization techniques * Life table * Regression techniques * Multivariate analysis