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concepts of epidemiology

Unit IV Assessment

1. There are several steps involved in conducting experimental studies. If you were conducting an experimental study on the effects of a new drug that was created to reduce skin cancer, what type of design would you use, and why? Where would you begin, and how would you analyze the data? Your response must be at least 200 words in length.

2. Identify the strengths and weaknesses of cohort and case-control studies. What is the main difference between the two? Your response must be at least 200 words in length.

3. Describe blocking and stratification in experimental study designs. What do they do? How are they used? Give an original example of each; find your example of each from a source other than your textbook. Your response must be at least 200 words in length.

concepts of epidemiology

  Consider the following hypothetical scenario: The Idaho Kidney Center analyzed deaths among patients with
kidney disease who were seen at their program from 1/1/2006 through 12/31/2011. A total of 2,965 deaths
occurred during the observation period among the 22,735 study population. The table below gives the race and
gender of the decedents and the total population.
Characteristic Decedents (N = 2,965) Total Study Population (N = 22,735)
Gender
Male
Female
1,779
1,186
15,748
6,987
Race
White, non-Hispanic
Black, non-Hispanic
Hispanic
Other/Unknown
1,951
523
251
240
12,912
8,066
1,230
527
Using the scenario above, calculate and explain how to find the prevalence of Hispanics in the total study
population. Then, calculate and explain how to find the ratio of males to females in the total study population.
What is the proportion of Black, non-Hispanic decedents in this program? In addition, what is the proportion of
White, non-Hispanic decedents in this study? Explain why this information is necessary for an epidemiological
study