Incidence is the # of new cases divided by the # of people at risk. To calculate the # of people at risk we have to subtract the # of people with active infections from the total population.
In this case, 500 people have active infections in a total population of 2500 people which means that the # of people at risk is 2000. 200 is the number of people who acquire the infection making the incidence to be 200/2000 = 10%.
submitted by โshak360(19)
Incidence is the # of new cases divided by the # of people at risk. To calculate the # of people at risk we have to subtract the # of people with active infections from the total population.
In this case, 500 people have active infections in a total population of 2500 people which means that the # of people at risk is 2000. 200 is the number of people who acquire the infection making the incidence to be 200/2000 = 10%.