This type of epidemiology provided information about the occurrence of disease in a population or its subgroups and trends in the frequency of disease over time. Data sources include death certificates, special disease registries, surveys, and population censuses. Descriptive measures are useful for identifying populations and subgroups at high and low risk of disease and for monitoring time trends for specific diseases. They provide the leads for analytic studies designed to investigate factors responsible for such disease profiles. There is also an element of analytical epidemiology. This seeks to identify specific factors that increase or decrease the risk of disease and to {text:bookmark-start} quantify {text:bookmark-end} the associated risk. Outcome measures include incidence, mortality, and survival rates in both the intervention and control
This type of epidemiology provided information about the occurrence of disease in a population or its subgroups and trends in the frequency of disease over time. Data sources include death certificates, special disease registries, surveys, and population censuses. Descriptive measures are useful for identifying populations and subgroups at high and low risk of disease and for monitoring time trends for specific diseases. They provide the leads for analytic studies designed to investigate factors responsible for such disease profiles. There is also an element of analytical epidemiology. This seeks to identify specific factors that increase or decrease the risk of disease and to {text:bookmark-start} quantify {text:bookmark-end} the associated risk. Outcome measures include incidence, mortality, and survival rates in both the intervention and control