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| Prospektivna kohortna studija slučaja i kontrole× | Randomizirano kliničko ispitivanje (RCT)× | |
|---|---|---|
| Područje | Epidemiologija | Epidemiologija |
| Obitelj | Process / pipeline | Process / pipeline |
| Godina nastanka≠ | 1970s–1990s (formalized alongside nested case-control methods) | 1948 (first rigorously conducted RCT — MRC streptomycin trial) |
| Tvorac≠ | Evolved from classical retrospective case-control methodology; prospective embedding attributed to modern epidemiological practice (Rothman, Greenland, and others, late 20th century) | Austin Bradford Hill; MRC Streptomycin Trial team |
| Vrsta≠ | Observational analytic study design | Interventional experimental study |
| Temeljni izvor≠ | Rothman, K. J., Greenland, S., & Lash, T. L. (2008). Modern Epidemiology (3rd ed.). Lippincott Williams & Wilkins. ISBN: 978-0781755641 | Friedman, L. M., Furberg, C. D., DeMets, D. L., Reboussin, D. M., & Granger, C. B. (2015). Fundamentals of Clinical Trials (5th ed.). Springer. ISBN: 978-3319185385 |
| Drugi nazivi | prospective case-control design, ambidirectional case-control, bidirectional case-control, nested case-control (prospective variant) | RCT, randomized controlled trial, randomised controlled trial, clinical randomized trial |
| Srodne | 6 | 6 |
| Sažetak≠ | A prospective case-control study embeds the case-control logic within a defined cohort followed forward in time. Cases are identified as they occur, rather than looked up in records after the fact, and controls are sampled from the same prospectively monitored base population. This forward-looking approach allows collection of exposure data before outcome ascertainment, reducing recall bias — the principal weakness of the classic retrospective case-control design — while retaining the efficiency gains of sampling controls rather than enrolling a full cohort. | A randomized clinical trial (RCT) is an experimental study design in which participants are randomly assigned to an intervention group or a control group, then followed prospectively to compare outcomes. Random allocation is the defining feature: it distributes known and unknown confounders across groups by chance, making the RCT the strongest individual study design for establishing causal efficacy of a treatment or intervention under controlled conditions. |
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