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What is 1 + 3?
Epidemiology Ch. 3
Ch 3- Epidemiology for Public Hth Practice, Robert H. Friss
type of ratio in which numerator is part of denominator. = A/(A+B) x 100
value obtained by dividing one quantity by another. consists of numerator and denominator, but does not necessarily have relationship
numerator consists of the frequency of disease over specified period of time, denominator is unit size of population at specific point in time
number of existing cases of disease in a population at designated time
rate of development of a disease in a group over a certain time period