unit 5 answers - Epidemiology 6000 Unit 5 Practice...

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Epidemiology 6000 Unit 5 Practice Questions 1 Start with these refresher questions: Question 1 Which of the following statements is NOT true about data on prevalence of a disease? A. Prevalence data are a function of the incidence and duration of the disease B. Prevalence data measure the risk of acquiring (or developing) the disease C. Are useful in planning for needed services and facilities D. Are preferably not used to study etiology if incidence data are available E. Tell us how common a condition is in a population Question 2 Based on the information provided, indicate which type of measure is being used: incidence density , cumulative incidence , or prevalence rate . Choose only one measure of the above measures for the following three questions. Question 2a The number of older women (age 65+) identified with osteoporosis in Sun City, FLA in 1996, divided by the total number of women age 65+ living in Sun City in 2004. (P) Question 2b The number of cases of sudden infant death syndrome (SIDS) between January 1, 2003 and December 31, 2003 in the geographic area of Tampa, FL, divided by the number of live births in Tampa in 2003 (including live births that did not survive the 1 st year). (CI) Question 2c The number of persons who suffered a first myocardial infarction during the years 2001- 2004, divided by the number of persons who were at risk and were followed for varying periods of time during 2001-2004 (ID) .
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Unit 5 Practice Questions 2 Unit 5 Practice Questions- Question 3 When a causal association exists between two variables, this association is: A. Bi-directional B. Non-directional C. Uni-directional Question 4 If there is an association between the exposure and disease, where the exposure increases the risk of disease, which group would show a higher incidence rate of disease? A. The exposed group B. The unexposed group C. Neither Question 5 The correct measure of association that is used in all cohort studies is: A. The odds ratio B. The prevalence rate ratio C. The relative risk D. The standardized morbidity ratio Question 6 Which of the following is an advantage of conducting prospective studies? A. Investigators can control exposure levels as needed. B. There is very little loss to follow-up. C. They are an inexpensive and quick way to examine an association. D. You may be able to infer a temporal relation between exposure and outcome. Questions 7 Choose which analytic design (cohort (prospective or retrospective are both considered cohort) OR case-control) is the best option for each research project described in the following questions. Question 7a- Research project -- Evaluating the association between exposure to radiation from an atomic bomb (a rare exposure) and the risk of developing leukemia (a relatively common outcome). A.
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This note was uploaded on 07/15/2011 for the course PHC 6000 taught by Professor Staff during the Summer '08 term at University of South Florida - Tampa.

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unit 5 answers - Epidemiology 6000 Unit 5 Practice...

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