HLTB15H3 Study Guide - Midterm Guide: Cohort Study, Confounding, Odds Ratio
9 Apr 2020
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Additional resources (optional) practice questions and answers. These practice questions (gathered from textbooks and course materials, including gordis, 2014 and aschengrau and seage, 2013) are intended to be additional resources that are optional and will not count towards your grade. Which of the following techniques that are commonly used in experimental studies can also be applied in cohort studies: blinding, placebo, randomization. Loss to follow-up can be a problem in a cohort study but not an experimental study. Describe the main difference between: a) experimental and observational studies; and b) cohort and case-control studies. Describe the cross-sectional study design and its main limitation. Using the data below, calculate the relative risk of disease in the exposed compared to non-exposed individuals. A number of studies have suggested that children with higher birth weights are more likely to develop brain tumours. In this analysis (see below), exposure is defined as birth weight greater than 8 lbs.
