What measures are used to compare the frequency of disease in populations and what information do they provide? Basic epidemiology Book 2nd Edition chapter 2 study questions
Following are the frequency measures used for disease frequency :
1. Prevalence
Prevalence measures the proportion of individuals in a defined population that have a disease or other health outcomes of interest at a specified point in time (point prevalence) or during a specified period of time (period prevalence).
2. Incidence
In contrast to prevalence, incidence is a measure of the number of new cases of a disease (or other health outcome of interest) that develops in a population at risk during a specified time period.
3. Age specific mortality rate : measures the number of deaths in a specific age group per year
4. Infant mortality rate : measures the number of deaths of children younger than 1 year per year.
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