Before revision: Examples Example 1: Disease High-prevalence population Numberof people Infected Uninfected Total Testpositive 400(true positive) 30(false positive) 430 Testnegative 0(false negative) 570(true negative) 570 Total 400 600 1000 Imagine running an infectious disease test on a population A of 1000 persons, of which 40%DIF < are infected.
After revision: Examples Example 1: Disease High-prevalence population Numberof people Infected Uninfected Total Testpositive 400(true positive) 30(false positive) 430 Testnegative 0(false negative) 570(true negative) 570 Total 400 600 1,000 Imagine running an infectious disease test on a population A of 1000 persons, of which 40%DIF < are infected.