What athe fundamentals of a case control study, give details Presetn Research Paper

What athe fundamentals of a case control study, give details Presetn the stregths and weakness of the approach. Debate with two peers and debate the peers rationale - Research Paper Example The main aim is always to analyze a disease to determine the exposure of the risk factor from the two groups of individuals, which are the cases and controls. A case study is devised for odds estimation. Since a case control study depends on retrospective data, there is a prospect of having recall bias. Recall bias is primarily the propensity of subjects to report events in an approach that is dissimilar between two groups of study. This means that people who are suffering from a disease are more inclined to remember the risk of exposure than those not having the disease (Bonita, 2006). Case control studies have their strengths and weaknesses. Let us start by discussing its strengths. Firstly, they are primarily the most realistic studies for exposing etiology in uncommon diseases. This helps people to understand the presence of new diseases in the community. They are also used in cases of disease outbreaks to understand the nature of the disease whether it is old or new. Furthermore, case control studies use minimal time to be conducted since the disease in study is always present. Lastly, it is an effective method of study since it gives information on new disease that other studies could have failed to find out (Gordis, 2009). However, there are also weaknesses of case control studies. Retrospective studies are predisposed to bias because of the quality of data occasioned by the reliance on memory. Moreover, people with a particular disease are most probably more motivated to recall the exposure of risk factors (recall bias). Secondly, case control studies are not appropriate in the evaluation of diagnostic tests since there is evidence that the cases have the condition whereas the controls do not have it. Still, it is an uphill task to get control groups. They are also restricted to give a single outcome and the incidence rates cannot be calculated. Lastly, case control studies