विधियों की तुलना करें
चुनी हुई विधियों की आमने-सामने समीक्षा करें; भिन्नता वाली पंक्तियाँ रेखांकित हैं।
| जोखिम-समायोजित चरण III नैदानिक परीक्षण× | यादृच्छिक नैदानिक परीक्षण (RCT)× | |
|---|---|---|
| क्षेत्र | महामारी विज्ञान | महामारी विज्ञान |
| परिवार | Process / pipeline | Process / pipeline |
| उद्भव वर्ष≠ | 1980s–present | 1948 (first rigorously conducted RCT — MRC streptomycin trial) |
| प्रवर्तक≠ | Evolving practice; foundational risk-adjustment principles established by Pocock (1983) and extended by numerous trialists | Austin Bradford Hill; MRC Streptomycin Trial team |
| प्रकार≠ | Confirmatory randomized trial with baseline risk stratification and covariate adjustment | Interventional experimental study |
| मौलिक स्रोत≠ | Pocock, S. J. (1983). Clinical Trials: A Practical Approach. Wiley. ISBN: 978-0471901556 | 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 |
| उपनाम | risk-stratified Phase III trial, covariate-adjusted Phase III RCT, risk-adjusted confirmatory trial, RA-Phase III | RCT, randomized controlled trial, randomised controlled trial, clinical randomized trial |
| संबंधित | 6 | 6 |
| सारांश≠ | A risk-adjusted Phase III clinical trial is a large-scale confirmatory randomized experiment that explicitly incorporates participants' baseline prognostic risk profile into both the randomization process and the primary statistical analysis. By stratifying patients on known risk factors before allocation and adjusting for those factors in the outcome model, the design achieves greater statistical precision, reduces confounding, and produces treatment effect estimates that are more clinically meaningful across patient subgroups. | 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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