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Updated: Feb 13, 2026

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Comparative Analysis of External Validity Reporting in Non-randomized Intervention Studies.

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The Canadian Journal of Nursing Research = Revue Canadienne De Recherche En Sciences Infirmieres
|March 7, 2018
PubMed
Summary

The TREND statement improves external validity reporting in behavioral and public health studies. Using this reporting guideline enhances the transparency and applicability of non-randomized intervention evaluations.

Keywords:
TREND statementanalyse comparativecomparative analysisexternal validityinterventions non aléatoiresnon-randomized interventionspublic healthsanté publiquevalidité externeénoncé TREND

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Area of Science:

  • Public Health
  • Behavioral Science
  • Research Methodology

Background:

  • External validity is crucial for generalizing intervention findings.
  • Non-randomized studies often face challenges in reporting external validity.
  • The TREND statement aims to improve the reporting of such designs.

Purpose of the Study:

  • To compare external validity reporting in studies using the TREND statement versus those that do not.
  • To assess the impact of the TREND statement on reporting quality.

Main Methods:

  • Comparative analysis of 14 non-randomized behavioral and public health intervention studies.
  • Evaluation of external validity reporting using Green and Glasgow's criteria.
  • Categorization of studies based on adherence to the TREND statement.

Main Results:

  • Studies utilizing the TREND statement exhibited superior external validity reporting.
  • A clear positive association was found between TREND statement use and reporting quality.
  • Green and Glasgow's criteria effectively highlighted differences in reporting.

Conclusions:

  • The TREND statement significantly enhances external validity reporting in non-randomized interventions.
  • The TREND statement and Green and Glasgow's criteria are valuable tools for improving research transparency.
  • Adoption of the TREND statement is recommended for behavioral and public health research.