What are the advantages of cohort study?

Answer:

  1. Allow complete information on the subject’s exposure, including quality control of data, and experience thereafter.
  2. Provide a clear temporal sequence of exposure and disease.
  3. Give an opportunity to study multiple outcomes related to a specific exposure.
  4. Permit calculation of incidence rates (absolute risk) as well as relative risk.
  5. Methodology and results are easily understood by non-epidemiologists.
  6. Enable the study of relatively rare exposures.
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