Introduction to Epidemiology 6th Edition by Ray M Merrill

Exercise 15

If the incidence of disease A is lower than the incidence of disease B, but the prevalence of disease A is higher than the prevalence of disease B, what does that say about the lethality of the two diseases? Assume that the cure rate is similar between both diseases.

Step 1 of 3

Incidence rate is defined as the number of cases that are new which is related to a state or event of a health which is described in a given interval of time divided to people who are at risk to become a case. This can be formulated as follows:

Where, values of n may be 0, 1, 2, 3, 4, and so on.