Background: The promotion of health equity, the absence of avoidable and
unfair differences in health outcomes, is a global imperative.
Systematic reviews are an important source of evidence for health
decision-makers, but have been found to lack assessments of the
intervention effects on health equity. The Preferred Reporting Items for
Systematic Reviews and Meta-Analysis (PRISMA) is a 27 item checklist
intended to improve transparency and reporting of systematic reviews. We
developed an equity extension for PRISMA (PRISMA-E 2012) to help
systematic reviewers identify, extract, and synthesise evidence on
equity in systematic reviews.
Methods and findings: In this explanation and elaboration paper we
provide the rationale for each extension item. These items are additions
or modifications to the existing PRISMA Statement items, in order to
incorporate a focus on equity. An example of good reporting is provided
for each item as well as the original PRISMA item.
Conclusions: This explanation and elaboration document is intended to
accompany the PRISMA-E 2012 Statement and the PRISMA Statement to
improve understanding of the reporting guideline for users. The PRISMA-E
2012 reporting guideline is intended to improve transparency and
completeness of reporting of equity-focused systematic reviews. Improved
reporting can lead to better judgement of applicability by policy makers
which may result in more appropriate policies and programs and may
contribute to reductions in health inequities.
This research is supported by the Department for International Development’s Evidence Building and Synthesis Research Programme which is led by Liverpool School of Tropical Medicine
Welch, V.; Petticrew, M.; Petkovic, J.; Moher, D.; Waters, E.; White, H.; Tugwell, T.; PRISMA-Equity Bellagio group. Extending the PRISMA statement to equity-focused systematic reviews (PRISMA-E 2012): explanation and elaboration. International Journal for Equity in Health (2015) 14: 92. [DOI: 10.1186/s12939-015-0219-2]
Extending the PRISMA statement to equity-focused systematic reviews (PRISMA-E 2012): explanation and elaboration