Epidemiological Study Designs Flashcards
What are the 2 categories of epidemiological studies?
Descriptive and Analytical
What are the two types of descriptive epidemiology studies?
- Ecological studies
- Cross-Sectional study
What 4 measurement scales can be used in ecological studies?
- Distinct categories
- Ordered categories
- Meaningful distances
- Absolute zero
What are the 4 elements of a cross-sectional study?
- Theoretical population
- Study population
- Sampling frame
- Sample
What is compared in a case-control study?
Levels of exposure in cases and controls
What 2 things can a cohort study be?
Historical or retrospective
What does a cohort study compare?
Compares the rate of incidence between exposed and unexposed groups
What are the 4 elements of a PICO study design?
Population
Intervention
Comparison
Outcome
What is analysed in an ecological study?
Groups
What is analysed in a cross-sectional study?
Individuals
What is analysed in a case-control study?
Odds ratio
What is analysed in a cohort study?
Rate or odds ratio
