Abstract
BackgroundSystematic reviews and meta-analyses are becoming increasingly important methods to summarize published research. Studies of ophthalmology may present additional challenges because of their potentially complex study designs. The aim of this study was to evaluate the reporting quality of systematic reviews and meta-analyses on topics in ophthalmology to determine compliance with the PRISMA guidelines. We assessed articles published between 2010 and 2015 in the five major relevant journals with the highest impact factors.MethodsThe MEDLINE and EMBASE databases were searched to identify systematic reviews published between January 2010 and December 2015 in the following 5 major ophthalmology journals: Progress in Retinal and Eye Research, Ophthalmology, Archives of Ophthalmology, American Journal of Ophthalmology, and Survey of Ophthalmology. The screening, identification, and scoring of articles were independently performed by two teams, and the results were submitted to statistical analysis to determine medians, ranges, and 95% CIs.ResultsA total of 115 articles were included. The median compliance was 15 out of 27 items (56%), the range was 5–26 (26–96%), and the inter-quartile range was 10 (37%). Compliance was highest in items related to the ‘description of rationale’ (item 3, 100%) and sequentially lower in ‘the general interpretation of results’ (item 26, 96%) and ‘the inclusion of a structured summary in the abstract’ (item 2, 90%). Compliance was poorest in the items ‘indication of review protocol and registration’ (item 5, 9%), ‘specification of risk of biases that may affect the cumulative evidence’ (item 15, 24%), and ‘description of clear objectives in the introduction’ (item 4, 26%).ConclusionThe reporting quality of systematic reviews and meta-analyses in ophthalmology should be significantly improved. While we recommend the use of the PRISMA criteria as a guideline before journal submission, additional research aimed at identifying potential barriers to compliance may be required to improve compliance with PRISMA guidelines.
Highlights
Among the 5 journals included in this study, only one journal (Ophthalmology) required the PRISMA checklist to be used to report a systematic review or meta-analysis
Because we focused on journals with high impact factors, our findings do not necessarily reflect adherence to PRISMA for systematic reviews published in journals with low impact factors
We strongly suggest that journals require that all PRISMA criteria should be fulfilled before allowing electronic journal submission because we believe that this will eliminate ambiguity in the reporting of studies
Summary
The aim of this study was to evaluate the reporting quality of systematic reviews and meta-analyses on topics in ophthalmology to determine compliance with the PRISMA guidelines. Systematic reviews and meta-analyses are key study designs that are used to summarize published research findings that are replacing traditional reviews and expert commentaries. In these studies, the authors collect and critically assess all evidence that fits pre-specified criteria with the aim of answering a specific research question. The authors collect and critically assess all evidence that fits pre-specified criteria with the aim of answering a specific research question They are able to limit biases by including a wider range of populations than.
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