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| Дизайн на кохортно проучване× | Дизайн на случай-контрола× | |
|---|---|---|
| Област | Клинични изследвания | Клинични изследвания |
| Семейство | Process / pipeline | Process / pipeline |
| Година на възникване≠ | 1970s-1980s | 1950s-1970s |
| Създател≠ | Donald Acheson, Olli Miettinen, and others in modern epidemiology | Jerome L. Schlesselman, Brian MacMahon, Thomas Pugh |
| Тип | Research Design | Research Design |
| Основополагащ източник≠ | Miettinen, O. S. (1976). Estimability and estimation in case-referent studies. American Journal of Epidemiology, 103(2), 226–235. DOI ↗ | Schlesselman, J. J. (1982). Case-Control Studies: Design, Conduct, Analysis. Oxford University Press. ISBN: 978-0195027815 |
| Други названия | prospective study, follow-up study, longitudinal study, cohort study | case-control study, retrospective study, matched case-control, nested case-control |
| Свързани | 2 | 2 |
| Резюме≠ | A cohort study follows a group of individuals forward in time from exposure to outcome. Exposed and unexposed participants (or participants with differing exposure levels) are enrolled at baseline, characterized, and observed prospectively until the outcome occurs or the study ends. Cohort studies are fundamental to epidemiology and are the design of choice for establishing causal associations when randomized trials are infeasible or unethical. | A case-control study identifies individuals with a disease or outcome (cases) and a comparison group without the outcome (controls), then measures prior exposure retrospectively. Developed in the 1950s–1970s by epidemiologists like Schlesselman and MacMahon, case-control studies are especially efficient for rare diseases, as they sample cases enriched for the outcome, avoiding the need for enormous cohorts. They are a mainstay of clinical epidemiology, observational research, and outbreak investigations. |
| ScholarGateНабор от данни ↗ |
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