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cohort study
A study that draws conclusions on the effects of factors or treatments by observing assigned group(s) of subjects over a period of time.
Evaluates effects of rare potential causes
Performs survival analysis
Appropriate outcome measure is relative risk [1]
Appears to assume but does not explicitly state there is a control group in addition to the cohort
Notes:
- the hierachy of evidence for observational studies is:
- case series < case control study < cohort study < meta-analysis of cohort studies
Specific
Ohsaki National Health Insurance Cohort study
prospective cohort study; prospective study
General
observational study
References
- Medical Knowledge Self Assessment Program (MKSAP) 16, 17. 18.
American College of Physicians, Philadelphia 2012, 2015, 2018.