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A measure of the public health impact of a causative factor; proportion of a disease in a group that is exposed to a particular factor which can be attributed to their exposure to that factor.
A mortality rate statistically modified to eliminate the effect of different age distributions in the different populations.
Age-Adjusted Mortality Rate
A factor, such as a microorganism, chemical substance, or form of radiation, whose presence, excessive presence, or (in deficiency diseases) relative absence is essential for the occurrence of a disease.
A mortality rate limited to a particular age group. The numerator is the number of deaths in that age group; the denominator is the number of persons in that age group in the population.
Age-Specific Mortality Rate
The aspect of epidemiology concerned with the search for health-related causes and effects. Uses comparison groups, which provide baseline data, to quantify the association between exposures and outcomes, and test hypotheses about causal relationships.
A comparative study intended to identify and quantify associations, test hypotheses, and identify causes. Two common types are cohort study and case-control study.
The application or practice of epidemiology to address public health issues.
Statistical relationship between two or more events, characteristics, or other variables.
A variant of an incident rate, applied to a narrowly defined population observed for a limited period of time, such as during an epidemic.