Design, analysis, and presentation of crossover trials

Design, analysis, and presentation of crossover trials

OBJECTIVE Although crossover trials enjoy wide use, standards for analysis and reporting have not been established. We reviewed methodological aspects and quality of reporting in a representative sample of published crossover trials. METHODS We searched MEDLINE for December 2000 and identified all randomized crossover trials. We abstracted data independently, in duplicate, on 14 design criter...

Author's response to reviews Title: Design, Analysis, and Presentation of Crossover Trials Authors:

Design , analysis and presentation of factorial randomised controlled trials ( 1 )

Design, analysis and presentation of factorial randomised controlled trials

BACKGROUND The evaluation of more than one intervention in the same randomised controlled trial can be achieved using a parallel group design. However this requires increased sample size and can be inefficient, especially if there is also interest in considering combinations of the interventions. An alternative may be a factorial trial, where for two interventions participants are allocated to ...

Design, Analysis, and Reporting of Crossover Trials for Inclusion in a Meta-Analysis

OBJECTIVE To evaluate the characteristics of the design, analysis, and reporting of crossover trials for inclusion in a meta-analysis of treatment for primary open-angle glaucoma and to provide empirical evidence to inform the development of tools to assess the validity of the results from crossover trials and reporting guidelines. METHODS We searched MEDLINE, EMBASE, and Cochrane's CENTRAL r...