方法对比

	前瞻性病例交叉设计	前瞻性队列研究
领域	流行病学	流行病学
方法族	Process / pipeline	Process / pipeline
起源年份	1991 (base design); prospective variant described in late 1990s–2000s	1950s (systematic application); conceptual roots earlier
提出者	Malcolm Maclure (case-crossover concept); prospective variant established by subsequent methodologists including Navidi and Weinhandl	Richard Doll and Austin Bradford Hill (landmark application, 1951-1954); cohort methodology formalised by modern epidemiology textbooks
类型	Observational epidemiological study design	Observational longitudinal study design
开创性文献	Maclure, M. (1991). The case-crossover design: a method for studying transient effects on the risk of acute events. American Journal of Epidemiology, 133(2), 144–153.	Rothman, K. J., Greenland, S., & Lash, T. L. (2008). Modern Epidemiology (3rd ed.). Lippincott Williams & Wilkins. ISBN: 978-0781755641
别名	prospective case-crossover study, forward-looking case-crossover, prospective self-controlled case-crossover, real-time case-crossover	longitudinal cohort study, prospective follow-up study, incidence study, prospective observational cohort
相关	3	6
摘要	The prospective case-crossover design is an observational epidemiological study in which each case serves as their own control. Unlike the retrospective variant, exposures are recorded in real time as participants are followed forward, eliminating recall bias. It is particularly suited to investigating transient environmental or behavioral triggers of acute events such as myocardial infarction, asthma attacks, or road-traffic injuries.	A prospective cohort study assembles a group of participants who are free of the outcome of interest at baseline, measures their exposures, and then follows them forward in time to record who develops the outcome. By collecting exposure data before outcomes occur, it establishes a clear temporal sequence that supports causal inference — a major advantage over retrospective designs. It is the cornerstone observational method in epidemiology and clinical research.