Choose the study design that best fits the following description: Incidence rates of early stage prostate...

Choose the study design that best fits the following description: Incidence rates of early stage prostate cancer in the United States were compared in every consecutive year from 2005 to 2012. It was discovered that incidence rates had decreased along with PSA testing, following the 2008 U.S. Preventive Services Task Force recommendation against PSA testing for average risk older men

a) Cross Sectional Study

b) Prospective Cohort Study

c) Ecologic Study

d) Case Control Study

e) Randomized Clinical Trial

f) Retrospective Cohort Study

Expert Solution

Here the right answer is Ecologic study.

Ecologic study is a type of observational study,which is used to measue the prevalence and incidence rate of a particular dusease in a geographical area.

In cross sectional studies,The study takes place at a single point in time. In Prospective studies, the research participants are enrolled before they develop the disease. In case control studies, 2 groups will be participating. They include the cases and control population. In randomized clinical trials, scientific experiments are carried out to test the effectiveness of a new drug or new intervention. In retro spective studies, the research is carried out on the basis of past events. hence all other options can be excluded here.

Nightingale answered 2 years ago

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