Question

How is impact mortality rate computed ?​

Answer 1

Although number of deaths serves as the numerator for both measures, mortality rate is calculated by dividing the number of deaths by the population at risk during a certain time frame. ... In this case, the mortality rate for the disease is 100 ÷ 1,000 = 0.1, or 10 percent.

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Answer 2

Answer:-

mortality rate is measured by number of deaths serves as the numerator for both measures, mortality rate is calculated by dividing the number of deaths by the population at risk during a certain time frame. As a true rate, it estimates the risk of dying of a certain disease. Hence, the two measures provide different information.

As an example, consider two populations. One population consists of 1,000 people; 300 of these people have the specified disease, 100 of whom die from the disease. In this case, the mortality rate for the disease is 100 ÷ 1,000 = 0.1, or 10 percent. The case fatality rate is 100 ÷ 300 = 0.33, or 33 percent. The second population also has 1,000 people; 50 people have the disease and 40 die from it. Here the mortality rate is 40 ÷ 1,000 = 0.04, or 4 percent; the case fatality rate, however, is 40 ÷ 50 = 0.8, or 80 percent. The incidence of death from the disease is higher in the first population, but the severity of disease is greater in the second.