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Essay / Research Paper Abstract
This 3 page paper examines the different types of studies done in the field of epidemiology. Bibliography lists 3 sources.
Page Count:
3 pages (~225 words per page)
File: RT13_SA907coh.rtf
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a group of patients is assembled and they are followed over a period of time, whereas a case controlled study is one where the studies are retrospective in nature ("Cohort
and case-control studies," 2009). An example of a case-control study is that "a researcher might identify a group of breast cancer patients who have died from a cancer registry, and
compare them with a similar group of patients with breast cancer who are still living" ("Cohort and case-control studies," 2009). Case-control studies are valuable because they allow the researchers to
dig into specific cases and proceed with an open ended research excursion, but the author has no control over the subjects. That is, conclusion will be limited. A cohort study
on the other hand will begin with an idea about the cause of a disease (Meirik, 2009). The author may observe the occurrence of a disease and relate it to
a hypothesis or causal factor, but the case control study will proceed with an actual disease and then investigate causes (Meirik, 2009). Each of the types of studies provide researchers
with much information, but which method should be chosen? Epidemiologists must choose an appropriate strategy in order to resolve the issue at hand and they must look at the incidence
rate, the time that elapses between exposure and manifestation, and things of that nature (Meirik, 2009). In considering a host of factors a researcher will decide whether or not the
case or cohort study is best (Meirik, 2009). Advantages of the cohort study includes the ability to gain complete information about a subjects experience in respect to a particular element
(Meirik, 2009). The data can be quality controlled (Meirik, 2009). Multiple outcomes may also be addressed (Meirik, 2009). Further, experiments can be done and control groups can be created so
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