hw1 - BIOST / EPI 513 Spring Quarter 2011 Dr. McKnight...

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Unformatted text preview: BIOST / EPI 513 Spring Quarter 2011 Dr. McKnight HOMEWORK 1 Due in the class online drop box at 9pm, Monday, April 4, 2011 1. Use Stata to examine the evidence for association between country of residence and prevalence of oncogenic HPV (Types 16 and 18) using the cross-sectional data presented on page 19 of the class notes. Then prepare the following to hand in: (a) Choose an association measure (RD, RR or OR) that you think best describes the association between country and the prevlance of HPV. State your choice and give a brief (one-sentence) justification for it. (b) Using at most two sentences, write a summary, appropriate for the results section of a scientific paper, that describes the findings from your statistical analysis of these data. Be sure to use information in the data about your association measure of choice. 2. In the CARE case-control study discussed in class, investigators also examined how the risk of breast cancer was associated with prior use of combination oral contraceptives. A 2of breast cancer was associated with prior use of combination oral contraceptives....
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This note was uploaded on 02/09/2012 for the course STAT 513 taught by Professor Barbaramc.knight during the Spring '11 term at University of Washington.

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hw1 - BIOST / EPI 513 Spring Quarter 2011 Dr. McKnight...

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