Milestone 3 - Draft of Study Design.docx

Milestone 3 - Draft of Study Design.docx - Final Project...

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Final Project Milestone Three: Draft of Study Design Gayatri Patel Southern New Hampshire University
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A case control study is designed to help determine if an exposure is associated with and outcome. Case control study design involves grouping people as cases depending upon their experience in health-related state or event and controls and investigating whether the cases are likely than the controls to have had past experiences, lifestyle behaviors, or exposures. The outcome is always identified before the exposure. Since the case control study always begin with outcome first and then look back at an antecedent variable or variables. However, large long trials are often infeasible because high costs, lack of long term compliance by subjects, and ethical issues. In older studies are useful in examining obesity as a risk factors for rare diseases, but there are high chances of recall bias and the problem of interviewer bias, which make the study unsuitable of risk factors of obesity. Whereas cohort studies, takes place before the assessment of health outcomes, minimizing the biases from the selection of healthy controls and retrospective reporting of diet and lifestyle factors. Thus, cohort study is considered the strongest study design.
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  • Fall '16
  • Epidemiology, Cohort study, Study design, case control study

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