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8. You have an eager research assistant that wishes to help you conduct interviews of cases and controls. When this person interviews the control subjects, they ask questions in a different manner from the cases. For control subjects, the research assistant asks questions quickly and does not elaborate when the subjects are confused by the question wording. The research assistant is much more meticulous about asking questions to the case subjects. What type of bias is this? 9. In Table 1 above, how many total cases are included in the study (whole number)? 10. In Table 1 above, how many total controls are included in the study (whole number)? 11. The odds ratio compares the odds of the disease among exposed individuals to the odds of disease among unexposed individuals, shown in the formula above and in your textbook on page 157. Calculate the odds ratio for the data in Table 1 above, and round to the nearest hundredth (two decimal places). 12. Based on your odds ratio found in Question 11, is there a positive association between the exposure and outcome, negative association, or no association? 13. In Table 2 above, how many total people had the exposure of interest (whole number)? 14. In Table 2 above, how many total people had the health outcome of interest (whole number)? 15. Calculate the odds ratio for the data in Table 2 above, and round to the nearest hundredth (two decimal places). 16. Based on your odds ratio found in Question 15, is there a positive association between the exposure and outcome, negative association, or no association? lil – ab X X ALA Styles Styles बार 2 Pane Be mindful of spelling and rounding when entering your responses in Blackboard. Table 1: Respiratory Disease & Smoking Status Smoker? Yes No Yes 116 20 Respiratory Disease? No 34 110 Table 2: Myocardial Infarction & Exercise Regular Exercise? Yes No Yes 52 82 Myocardial Infarction in past year? No 56 16 OR a = b C +d axd bxc 1. Analytic epidemiologic studies attempt to answer what types of questions? (select all that apply) a. Who? b. What? c. When? d. Where? e. Why? f. How?
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