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SPH696-Attributable Risks For Bladder Cancer

tag 0 Download 5 Pages / 1,121 Words tag 21-03-2020
  • Course Code: SPH696
  • University: University Of Alberta
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  • Country: Canada

Questions:

1. D’Avanzo et al. indicate that in their study, odds ratios were calculated “as estimators of [not or: this is a typo] relative risks” (page 428, paragraph 2 of “Data Analysis”). The authors could actually have been more specific and have used the term “incidence rate ratio”.
 
a) Explain why the incidence rate ratio would be of interest in a study such as this one? 

b) Indicate the type of case-control study that was conducted.

c) Which key design characteristic must be present to allow the estimation of the incidence rate ratio in a case-control study such as this one?
 
2.Explain why the distribution of the variables presented in Table 1 was similar between cases and controls?
 
3. The title of the paper refers to the estimation of attributable risks; the “Data Analysis” section (paragraph 3) mentions attributable risks and also population attributable risks; tables 3 and 4 show attributable risks percent.
 
a) What specific parameter was actually estimated?
 
b) Give the formula (do not carry out any calculations) defining this parameter:

(i) in the context of cohort studies, and
(ii) in the context of case-control studies.  
 
4. Using odds ratio estimates given in table 2:
 
a) estimate the attributable risk percent (etiologic fraction) of bladder cancer, in relationship to history of cystitis
 
 
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My Assignment Help. Attributable Risks For Bladder Cancer [Internet]. My Assignment Help. 2020 [cited 12 August 2022]. Available from: https://myassignmenthelp.com/free-samples/sph696-attributable-risks-for-bladder-cancer.


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