Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement.

Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement

The Conduct and Reporting of Meta-Analyses of Studies of Diagnostic Tests, and a Consideration of ROC Curves: Answers to the January 2010 Journal Club Questions

The Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) was released as a standard of reporting systematic reviewers (SRs). However, not all SRs adhere completely to this standard. This study aimed to evaluate the reporting quality of SRs published in the Cochrane Library and paper-based journals. The SRs which evaluate the effectiveness of nursing interventions in 2016 were identified via PubMed. The reporting quality of selected articles was evaluated using the PRISMA checklist. For comparison, we divided these articles into Cochrane review (CR) and non-Cochrane review (NCR). Based on the satisfaction of the applicable criteria, each article is assigned an accumulated score and a total percentage score. Overall, 41.7% articles were concentrated in 19.0 to 22.5 points which represent the moderate quality, 22% articles were high quality. There were still 36.5% articles with low quality. The mean PRISMA score was 20.54 ± 2.367 for CRs, and 18.81 ± 2.536 for NCRs. Although no significant difference was exit between overall CR and NCR scores, there were differences between items 1, 5, 8, 16, 23. Analysis indicated that CR was significantly associated with the overall PRISMA score. Compliance of CR and NCR with PRISMA checklist exhibited different strengths and weaknesses. Our study underscores that nursing researchers should pay more attention to comprehensive reporting of SRs in nursing to follow the PRISMA statement. Nursing researchers who participate in SRs should follow the latest Cochrane Handbook to prepare such study. Meanwhile, the PRISMA statement should be followed strictly to report SRs, so as to improve the quality of SRs.

The PRISMA statement is a reporting guideline designed to improve the completeness of reporting of systematic reviews and meta-analyses. Authors have used this guideline worldwide to prepare their reviews for publication. In the past, these reports typically compared 2 treatment alternatives. With the evolution of systematic reviews that compare multiple treatments, some of them only indirectly, authors face novel challenges for conducting and reporting their reviews. This extension of the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analyses) statement was developed specifically to improve the reporting of systematic reviews incorporating network meta-analyses. A group of experts participated in a systematic review, Delphi survey, and face-to-face discussion and consensus meeting to establish new checklist items for this extension statement. Current PRISMA items were also clarified. A modified, 32-item PRISMA extension checklist was developed to address what the group considered to be immediately relevant to the reporting of network meta-analyses. This document presents the extension and provides examples of good reporting, as well as elaborations regarding the rationale for new checklist items and the modification of previously existing items from the PRISMA statement. It also highlights educational information related to key considerations in the practice of network meta-analysis. The target audience includes authors and readers of network meta-analyses, as well as journal editors and peer reviewers.

Systematic reviews attempt to answer research questions by synthesizing the data in primary articles. They are an increasingly important tool within evidence-based medicine, guiding clinical practice, future research, and health care policy. To determine the reporting quality of recent systematic reviews and meta-analyses in plastic surgery with the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) statement. MEDLINE and EMBASE were searched for systematic reviews published between January 1, 2013, and December 31, 2014, in 5 major plastic surgery journals. Screening, identification, and data extraction were performed independently by 2 teams. Articles were reviewed for compliance with reporting of 27 items in the PRISMA checklist. Data analysis was conducted from January 1 to July 30, 2015. The sum of PRISMA checklist items (1-27) per systematic review. From an initial set of 163 articles, 79 met the inclusion criteria. The median PRISMA score was 16 of 27 items (59%) (range, 6%-26%; 95% CI, 14%-17%). Compliance varied between individual PRISMA items. It was poorest for items related to the use of review protocol (item 5; 4 articles [5%]) and presentation of data on the risk of bias of each study (item 19; 14 articles [18%]). Compliance was the highest for description of rationale (item 3; 78 articles [99%]), sources of funding and other support (item 27; 75 articles [95%]), and inclusion of a structured summary in the abstract (item 2; 75 articles [95%]). The reporting quality of systematic reviews in plastic surgery requires improvement. Enforcement of compliance through journal submission systems, as well as improved education, awareness, and a cohesive strategy among all stakeholders, is called for. NA.

BackgroundThe PRISMA Statement is a reporting guideline designed to improve transparency of systematic reviews (SRs) and meta-analyses. Seven extensions to the PRISMA Statement have been published to address the reporting of different types or aspects of SRs, and another eight are in development. We performed a scoping review to map the research that has been conducted to evaluate the uptake and impact of the PRISMA Statement and extensions. We also synthesised studies evaluating how well SRs published after the PRISMA Statement was disseminated adhere to its recommendations.MethodsWe searched for meta-research studies indexed in MEDLINE® from inception to 31 July 2017, which investigated some component of the PRISMA Statement or extensions (e.g. SR adherence to PRISMA, journal endorsement of PRISMA). One author screened all records and classified the types of evidence available in the studies. We pooled data on SR adherence to individual PRISMA items across all SRs in the included studies and across SRs published after 2009 (the year PRISMA was disseminated).ResultsWe included 100 meta-research studies. The most common type of evidence available was data on SR adherence to the PRISMA Statement, which has been evaluated in 57 studies that have assessed 6487 SRs. The pooled results of these studies suggest that reporting of many items in the PRISMA Statement is suboptimal, even in the 2382 SRs published after 2009 (where nine items were adhered to by fewer than 67% of SRs). Few meta-research studies have evaluated the adherence of SRs to the PRISMA extensions or strategies to increase adherence to the PRISMA Statement and extensions.ConclusionsMany studies have evaluated how well SRs adhere to the PRISMA Statement, and the pooled result of these suggest that reporting of many items is suboptimal. An update of the PRISMA Statement, along with a toolkit of strategies to help journals endorse and implement the updated guideline, may improve the transparency of SRs.

The PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) Statement aims to optimize the reporting of systematic reviews. The performance of the PRISMA Statement in improving the reporting and quality of surgical systematic reviews remains unclear. Systematic reviews published in five high-impact surgical journals between 2007 and 2015 were identified from online archives. Manuscripts blinded to journal, publication year and authorship were assessed according to 27 reporting criteria described by the PRISMA Statement and scored using a validated quality appraisal tool (AMSTAR, Assessing the Methodological Quality of Systematic Reviews). Comparisons were made between studies published before (2007-2009) and after (2011-2015) its introduction. The relationship between reporting and study quality was measured using Spearman's rank test. Of 281 eligible manuscripts, 80 were published before the PRISMA Statement and 201 afterwards. Most manuscripts (208) included a meta-analysis, with the remainder comprising a systematic review only. There was no meaningful change in median compliance with the PRISMA Statement (19 (i.q.r. 16-21) of 27 items before versus 19 (17-22) of 27 after introduction of PRISMA) despite achieving statistical significance (P = 0·042). Better reporting compliance was associated with higher methodological quality (rs = 0·70, P < 0·001). The PRISMA Statement has had minimal impact on the reporting of surgical systematic reviews. Better compliance was associated with higher-quality methodology.

BackgroundSystematic reviews (SRs) and meta-analyses (MAs) are distillation of current best available evidence, but are potentially prone to bias. The bias of SRs and MAs comes from sampling bias, selection bias and within study bias. So, their reporting quality is especially important as it may directly influence their utility for clinicians, nurses, patients and policy makers. The SRs and MAs on nursing interventions in patients with Alzheimer’s disease (AD) have been increasingly published over the past decade, but the reporting quality of article has not been evaluated after the introduction of Preferred Reporting Items for Systematic Reviews and Meta Analyses (PRISMA) Statement.MethodsAccording to the inclusion and exclusion criteria, we searched the databases including PubMed, EMBASE and The Cochrane Library from inception through October 16th 2018. Two reviewers independently selected articles and extracted data. The PRISMA checklist was adopted to evaluate reporting quality. Comparisons were made between studies published before (2001–2009) and after (2011–2018) its introduction.ResultsA total of 77 eligible articles, 18 (23.4%) were published before the PRISMA Statement and 59 (76.6%) were published afterwards. There was higher score after publication of the PRISMA Statement than before (20.83 ± 3.78 vs 17.11 ± 4.56, P < 0.05). There was an improvement in the following items after the PRISMA statement was released (P < 0.05): title (item 1, 50.0% vs 74.6%, OR = 3.10, 95CI%: 1.00–9.61), search (item8, 27.8% vs 57.6%,OR = 3.25, 95CI%: 1.14–9.28), study selection (item 9, 44.4% vs 81.4%,OR = 6.28, 95CI%: 1.93–20.37), Data collection process (item 10, 50.0% vs 76.3%,OR = 3.45, 95CI%:1.10–10.84), risk of bias in individual studies (item 12, 50.0% vs 83.1%, OR = 5.78, 95CI%:1.71–19.52), risk of bias across studies (item15, 5.6% vs 28.8%,OR = 3.60, 95CI%:1.04–12.43), study characteristics (item 18, 77.8% vs 98.3%, OR = 28.13, 95CI%:3.35-236.19), risk of bias with studies (item 19, 50.0% vs 83.1%, OR = 5.78, 95CI%:1.71-19.52), results in individual studies (item 20, 72.2% vs 94.9%, OR = 11.09, 95CI%:1.99–61.82), conclusions (item 26, 77.8% vs 98.3%, OR = 28.13, 95CI%:3.35–236.19). After controlling for the confounding factors, there were higher PRISMA score for systematic reviews including meta-analyses, protocol or registration, can’t answer of RCT, journal source of SCI (Science Citation Index), manuscript length > 13 page and funding support.ConclusionSince the publication of the PRISMA Statement, there has been an improvement in the quality of reporting of SRs and MAs on nursing interventions in patients with AD. More endorsement by journals of the report guideline for SRs/MAs may improve articles reporting quality, and the dissemination of reliable evidence to nurses. We recommend authors, readers, reviewers, and editors to become more acquainted with and to more strictly adhere to the PRISMA checklist.

PRISMA 2020

BackgroundThe 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 findingsIn 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.ConclusionsThis 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.To encourage wide dissemination of this article it is accessible on the International Journal for Equity in Health, Journal of Clinical Epidemiology, and Journal of Development Effectiveness web sites.Electronic supplementary materialThe online version of this article (doi:10.1186/s12939-015-0219-2) contains supplementary material, which is available to authorized users.

BackgroundThe 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 synthesize evidence on equity in systematic reviews. Methods and FindingsIn this explanation and elaboration article, we provide the rationale for each extension item. These items are additions or modifications to the existing PRISMA statement items, to incorporate a focus on equity. An example of good reporting is provided for each item as well as the original PRISMA item. ConclusionsThis 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 judgment of applicability by policy makers which may result in more appropriate policies and programs and may contribute to reductions in health inequities.

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 the 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. 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. 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 the transparency and completeness of the reporting of equity-focused systematic reviews. Improved reporting can lead to better judgement of applicability by policymakers, which may result in more appropriate policies and programmes and may contribute to reductions in health inequities. To encourage wide dissemination of this article it is accessible on the International Journal for Equity in Health, Journal of Clinical Epidemiology, and Journal of Development Effectiveness websites.

PRISMA 2020: An Update.

Analysis of reporting of systematic reviews in physical therapy published in Portuguese

This article aims to discuss key aspects of systematic reviews (SR) focusing on the improvement of the conduct and reporting. Important aspects of SRs, such as prospective registration of the review protocol, basic structure, inclusion criteria, use of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Statement, confidence in the results and future directions are discussed. To determine relevant aspects, a search was conducted without date limitations in PubMed (October 15th, 2017) to identify SRs written in English evaluating clinical performance of direct composite resin restoration in permanent posterior teeth or comparing direct composite resin with other material/techniques. The quality of SRs included was assessed using the Assessing the Methodological Quality of Systematic Reviews 2 tool. Fifteen SRs were included. The overall confidence in the results of SRs was classified as critically low. Some aspects should be highlighted: SRs of in vitro studies are an important tool in restorative dentistry, and initiatives such as the PRISMA Statement and PROSPERO should be considered a standard code of practice. The compliance with and awareness of the discussed aspects may be a significant feature of the improvement of SR quality in the dentistry. Initiatives such as the PRISMA Statement and PROSPERO should be taken in account by systematic reviewers in dentistry to improve the conduct and reporting of SRs, and to make their reviews are more clinically helpful.