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prospective cohort study; prospective study
A study that depends on data collected prospectively from the time the study begins.
Prospective cohort studies are designed to follow a defined population (cohort) for outcome(s) subsequent to the initiation of the study.
Indications:
- best type of study to determine prognosis of common diseases [1] Contradications
- participant attrition or loss to follow-up over the study period is a limitation [1]
Notes:
- the hierachy of evidence for observational studies is:
- case series < case control study < cohort study < meta-analysis of cohort studies
Specific
Prospective Study of Pravastatin in Elderly People at Risk (PROSPER)
testosterone & risk of Alzheimer's disease
General
cohort study
References
- NEJM Knowledge+ Endocrinology