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Related Experiment Videos

Extending the CONSORT statement to cluster randomized trials: for discussion.

D R Elbourne1, M K Campbell

  • 1Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK. diana.elbourne@lshtm.ac.uk

Statistics in Medicine
|February 17, 2001
PubMed
Summary

Clear reporting for cluster randomized trials is crucial. This study suggests adaptations to the CONSORT Statement checklist and patient flow diagram for two-level cluster trials, highlighting implementation challenges.

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Area of Science:

  • Clinical Trials Methodology
  • Biostatistics
  • Epidemiology

Background:

  • The CONSORT Statement provides guidelines for reporting randomized controlled trials.
  • Clear reporting is essential for evidence-based medicine and trial reproducibility.
  • Cluster randomized trials (CRTs) present unique reporting challenges compared to individually randomized trials.

Purpose of the Study:

  • To propose adaptations to the CONSORT Statement for two-level cluster randomized trials.
  • To discuss the challenges in implementing these adaptations.
  • To identify areas for future research in CRT reporting.

Main Methods:

  • Review and adaptation of the existing CONSORT checklist for CRTs.
  • Development of modified patient flow diagrams for two-level CRTs.

Related Experiment Videos

  • Illustrative example using an unpublished trial to demonstrate implementation.

    • Main Results:

    • Specific modifications to the CONSORT checklist and patient flow diagram are proposed for two-level CRTs.
    • Implementation of these changes can be challenging, as shown by an example.
    • Electronic publications may offer solutions for more complex reporting.

    Conclusions:

    • Adaptations to CONSORT are needed for clear reporting of two-level cluster randomized trials.
    • Further research is required for more complex CRT designs (e.g., multi-level, stratified, matched).
    • Formal evaluation of proposed reporting guidelines is necessary.