A case-control study was conducted to assess the relationship between multiple sex partners and Kaposi’s sarcoma, a cancer transmitted by human herpesvirus 8.
A case-control study was conducted to assess the relationship between multiple sex partners and Kaposi’s sarcoma, a cancer transmitted by human herpesvirus 8. Cases were men g 24 to 40 who had been diagnosed with Kaposi’s sarcoma during the six months prior to study recruitment. A group of men who had never been diagnosed with Kaposi’s sarcoma were selected as controls. 770 men recruited where 310 were cases. Among cases 201 had multiple sex partners (exposure). Among controls 116 had multiple sex partners a. What is the percent exposed among cases? b. What is the percent exposed among controls? c. What are the odds of exposure among cases? d. What are the odds of exposure among controls? e. Calculate and interpret the disease odds ratio for these data. f. Why can’t we calculate a risk ratio in this study?
. In the following example, we will explore when the odds ratio will approximate the risk ratio. —— Not Diseased a. Calculate the risk ratio b. Calculate the odds ratio c. Does the odds ratio do a good job of approximating the risk ratio? d. When does the OR do a good job of approximating the RR? 3. Below table shows incidence rate of heart disease among smokers and non-smokers from a cohort study conducted over 5 years. —— Total person-Year 3782 6218 a. What is the rate of heart disease among smokers? b. What is the rate of heart disease among non-smokers? c. What is the rate difference? Describe it in few sentences. d. What is the rate ratio? Describe in few sentences. 4. Describe advantages and disadvantages of case-control study 5. When would you calculate risk difference and why?
Prevalence of supplemental calcium use in women aged 60 and over, by racial and ethnic group: United States, 1988-2006 70 Total Non-Hispanic white Non-Hispanic black Mexican American 165.7 61.0 60 158.9 53.8 252.3 50 40 239.5 33.8 Percent 30 28.2 129.9 29.5 223.2 20 12.4 10 1988-1994 1999-2002 2003-2006 Years Significantly different from non-Hispanic black and Mexican-American women. 2Significantly different from non-Hispanic black women. NOTE: 1968-1904 rates significantly different from those of the 1959-2002 and 2003-2005 survey periods. SOURCE: CDC/NCHS, National Health and Nutrition Examination Surveys. 6. Use above Figure 3 to answer following questions. a. Identify at least 3 findings from the figure above. b. Based on the figure which group would you target for education intervention to improve calcium supplementation intake? Explain. c. What are some advantages for conducting a cross-sectional study?
Collepals.com Plagiarism Free Papers
Are you looking for custom essay writing service or even dissertation writing services? Just request for our write my paper service, and we'll match you with the best essay writer in your subject! With an exceptional team of professional academic experts in a wide range of subjects, we can guarantee you an unrivaled quality of custom-written papers.
Get ZERO PLAGIARISM, HUMAN WRITTEN ESSAYS
Why Hire Collepals.com writers to do your paper?
Quality- We are experienced and have access to ample research materials.
We write plagiarism Free Content
Confidential- We never share or sell your personal information to third parties.
Support-Chat with us today! We are always waiting to answer all your questions.
