Study designs Flashcards
1
Q
Study
designs
A
- Ecological
- Cross sectional
- Case-control
- Cohort
2
Q
Type
of study
A
- Descriptive
- Analytic
3
Q
Descriptive
type study
A
- Characterize patterns like morbidity & mortality in populations by person, place, or time.
- They do not test hypotheses, is an overview of health status or disease frequency.
Ecological and Cross sectional
4
Q
Analytical
type study
A
-
Test hypotheses
about the association between
an exposures & disease
Ecological, Cross sectional, Case-controls, Cohort
5
Q
Preferred
Measures of association
A
- Ecological: Corr. Coeff. (Pearsons r)
- Cross sectional: POR / PRR
- Case-controls: OR / RR
- Cohort: RR / OR
6
Q
Describing
Measures of association
A
- OR: Strenght of Asscn
- RR: Strenght of Asscn
- AR: How much disease assoc with exposure
- %AR: Impact of exposure if eliminated
7
Q
Measures of
Absolute Risk
A
- Incidence (CI, IR)
- Attributable risk (AR)
Represent absolute rates of disease
Used in public health and preventive activities as the main goal is to reduce an absolute reduction in the risk of an undesirable outcome.
8
Q
Measures of
Relative risk
A
- RR
- OR, POR
Represent absolute ratios of risks, rates, odds of disease
Used in etiologic studies searching causes and determinants
