EPI 201 Lab 2 Practice.docx - EPI 201 Lab 2 PART 1 1 A population-based case-control study will explore the relationship between past oral contraceptive

EPI 201 Lab 2 Practice.docx - EPI 201 Lab 2 PART 1 1 A...

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EPI 201 Lab 2 PART 1 1.A population-based case-control study will explore the relationshipbetween past oral contraceptive use and postmenopausalendometrial cancer. In sampling the study base from the casesabove,a.Should women who underwent hysterectomy pre-menopausally beexcluded when sampling controls? b.Should women who did not use oral contraceptive for religiousreasons be excluded when sampling controls? 2.In a case-control study of stomach cancer among all residents ofConnecticut from 2000 to 2002, incident cases are obtained fromthe state cancer registry. Controls are randomly selected fromamong residents of Connecticut during the same time period. Theinvestigators wish to assess whether a particular genetic maker(such as blood group A or a particular SNP) increases the risk ofstomach cancer.a.What type of case-control sampling strategy does this describe?
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