13 Questions
What is the primary purpose of a cohort study?
To describe the incidence rates of an outcome over time
In a cohort study, what is the starting point for the study?
Risk factor
Which type of study design is considered the best observational one for establishing cause–effect relationships?
Cohort study
What distinguishes cohort studies from other types of studies?
Grouping people based on exposure to specific factors
What is the key feature of cohort studies in terms of follow-up?
Following up groups over time to determine disease incidence
Which of the following examples best represents a cohort study?
Life expectancy of cerebral palsy children
In a cohort study, what is a strength of using objective measures of exposure?
It helps in determining the incidence of disease in exposed and unexposed groups
What is a limitation of cohort studies when considering rare diseases?
They are not efficient for rare diseases
What does the relative risk of 1 indicate in relation to exposure and disease?
There is no association between exposure and disease
What does the term 'hazards' refer to in the context of measuring the association between risk factor and diseases?
The likelihood of injury
Why are objective measures of exposure preferred over subjective measures in cohort studies?
They help in determining the incidence of disease in exposed and unexposed groups
What is a potential issue when a cohort study goes over many years?
It may have considerable loss to follow up
What does the relative risk measure in a cohort study?
Risk in the exposed
This quiz provides an introduction to cohort studies, a type of analytical study used in epidemiology. It covers the concept of exposed and unexposed groups, and their follow-up over time to observe the occurrence of diseases. It also discusses the design and purpose of cohort studies.
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