9 Questions
What is the purpose of a risk ratio?
To compare rates of disease in two groups that differ by demographic characteristics or exposure history
What type of study is a cohort study?
Follow up
What type of study design is recommended for investigating a preliminary hypothesis?
Case-Control Study
What is the calculation used to determine an odds ratio?
The ratio of the odds of the first group divided by the odds in the second group
What type of study is a retrospective cohort study?
Prospective
What is the formula for calculating the Exposure Odds Ratio?
(ad)/(bc
What type of study is a risk study?
Analytic
What type of ratio is usually from a cross-sectional study?
Prevalence Odds Ratio
What is the interpretation of a risk ratio of 5.8?
The risk of diabetes among those who are obese is 5.8 times the risk among those who are non-obese
Study Notes
- A cohort study is a study that follows a group of people who share a common characteristic or experience.
- A cohort study can be used to find multiple outcomes from a single exposure.
- A retrospective cohort study is a study that is conducted at the time that the exposure occurs, and the potential outcome has already occurred in the past.
- A prospective cohort study is a study that is conducted when the exposure is rare and the outcome is common.
- A risk study is a calculation that quantifies the probability of experiencing an outcome in a given population.
- A descriptive study is a study that describes the key facts from a study.
- An analytic study is a study that calculates the risk of an outcome in a given population.
Explore the characteristics of cohort studies, including retrospective and prospective designs, as well as the concepts of risk and descriptive and analytic studies.
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