Lecture 5 Flashcards
Descriptive Epidemiology
describes the distribution of morbidity or mortality by person, place or time variables
usually only dealing with one variable
Analytic epidemiology
studies the determinants of disease
What are the 2 types of study designs related to descriptive epidemiology
- case series
- cross sectional
What are the 2 types of study designs related to analytical epidemiology
- experimental
- observational (case control, cohort, cross sectional)
Cohort study
exposure is ascertained prior to the ascertainment of an outcome
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Case-control study
outcome is ascertained prior to ascertainment of exposure
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Cross sectional study
simultaneous ascertainment of exposure and outcome
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Prevalence rate
the proportion of the population that has a given disease or condition at a specified time
Incidence rate
the proportion of the population at risk that develops a given disease or condition during a specified time period