Assignment 4 COH315 Sarah Williamson 1. The investigations that need to be reviewed by the board is the steroid hormone CASH. This investigation also need to be reviewed. 2. The types of bias that are of concern in a case-control study would be information bias. The steps that could be taken to lessen the information bias would be to recognizing precise questions, identifying the right subject groups, giving patients the opportunity to answer privately, and clear data analysis. 3. The table shells that might be used to study and present would be headings, labels, measures, and statistics to be calculated. 4. Calculating the risk of ovarian cancer among oral contraceptive users is 0.72. This is because the risk is less than 1. Per the Canadian Academy of Child and Adolescent Psychiatry, “OR>1 Exposure associated with higher odds of outcome”, meaning that the exposed group is at a higher risk level than someone who was unexposed. 5. The odds ratio used to estimate is exposed patients divided by the odds of the unexposed. The odds ratio is not appropriate when chances of exposure and the illness are not likely to exist. Per the British Medical Journal, “The only safe use of odds ratios is in case- control studies and logistic regression analyses, where they are the best estimates of relative risks that can be obtained.” Also, when the rick of illness is increased among the patients that have been exposed.
You've reached the end of your free preview.
Want to read all 4 pages?
- Winter '16
- Epidemiology, Statistical hypothesis testing, Confounding, Case-control study, Combined oral contraceptive pill