方法对比

	匹配的III期临床试验	匹配队列研究
领域	流行病学	流行病学
方法族	Process / pipeline	Process / pipeline
起源年份	Mid-20th century (matching in RCTs formalized ~1950s–1970s)	Mid-20th century; propensity-score variant 1983
提出者	Fisher, R. A. (matching principles); adapted into confirmatory trial design over mid-20th century	Established practice; propensity-score matching formalized by Rosenbaum & Rubin (1983)
类型	Controlled confirmatory clinical trial with matching	Observational analytic study design
开创性文献	Rothman, K. J., Greenland, S., & Lash, T. L. (2008). Modern Epidemiology (3rd ed.). Lippincott Williams & Wilkins. ISBN: 978-0781755641	Rothman, K. J., Greenland, S., & Lash, T. L. (2008). Modern Epidemiology (3rd ed.). Lippincott Williams & Wilkins. ISBN: 978-0781755641
别名	matched controlled Phase III trial, Phase III matched-pair trial, matched confirmatory trial, matched late-phase RCT	matched follow-up study, paired cohort study, propensity-matched cohort, matched prospective study
相关	5	5
摘要	A matched Phase III clinical trial is a confirmatory, late-stage controlled study in which each participant assigned to the experimental treatment is paired with one or more controls who share key prognostic characteristics — such as age, disease stage, or comorbidities — before treatment allocation. By ensuring baseline comparability at the level of matched pairs, the design reduces confounding and improves statistical efficiency in settings where simple randomization alone may produce imbalanced groups or where full randomization is logistically or ethically constrained.	A matched cohort study is an observational design in which each exposed participant is paired with one or more unexposed counterparts who share key characteristics — such as age, sex, or comorbidity status — before both groups are followed forward in time to compare incident outcomes. Matching controls for measured confounders at the design stage, reducing bias that would otherwise require statistical adjustment alone.