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Systematic reviews and meta-analysis published in indexed Portuguese medical journals: time trends and critical appraisal

2022Journal article Open access
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dc.contributor.authorPrada, Luísa
dc.contributor.authorPrada, Ana Raquel Russo
dc.contributor.authorAntunes, Miguel Marques
dc.contributor.authorFernandes, Ricardo M.
dc.contributor.authorCosta, João
dc.contributor.authorFerreira, Joaquim J.
dc.contributor.authorCaldeira, Daniel
dc.date.accessioned2022-05-18T13:19:43Z
dc.date.available2022-05-18T13:19:43Z
dc.date.issued2022
dc.description.abstractOver the last years, the number of systematic reviews published is steadily increasing due to the global interest in this type of evidence synthesis. However, little is known about the characteristics of this research published in Portuguese medical journals. This study aims to evaluate the publication trends and overall quality of these systematic reviews. Material and methods: This was a methodological study. We aimed the most visible Portuguese medical journals indexed in MEDLINE. Systematic reviews were identified through an electronic search (through PUBMED). We included systematic reviews published up to August 2020. Systematic reviews selection and data extraction were done independently by three authors. The overall quality critical appraisal using the A MeaSurement Tool to Assess systematic Reviews (AMSTAR-2) was independently assessed by three authors. Disagreements were solved by consensus. Results: Sixty-six systematic reviews published in 5 Portuguese medical journals were included. Most (n = 53; 80.3%) were systematic reviews without meta-analysis. Up to 2010 there was a steady increase in the number of systematic reviews published, followed by a period of great variability of publication, ranging from 1 to 10 in a given year. According to the systematic reviews’ typology, most have been predominantly conducted to assess the effectiveness/ efficacy of health interventions (n = 27; 40.9%). General and Internal Medicine (n = 20; 30.3%) was the most addressed field. Most systematic reviews (n = 46; 69.7%) were rated as being of “critically low-quality”. Conclusions: There were consistent flaws in the methodological quality report of the systematic reviews included, particularly in establishing a prior protocol and not assessing the potential impact of the risk of bias on the results. Through the years, the number of systematic reviews published increased, yet their quality is suboptimal. There is a need to improve the reporting of systematic reviews in Portuguese medical journals, which can be achieved by better adherence to quality checklists/tools.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPrada, Luísa; Prada, Ana; Antunes, Miguel Marques; Fernandes, Ricardo M.; Costa, João; Ferreira, Joaquim J.; Caldeira, Daniel (2022). Systematic reviews and meta-analysis published in indexed portuguese medical journals: time trends and critical appraisal. BMC Medical Research Methodology. EISSN 1471-2288. 22:1, p. 1-9pt_PT
dc.identifier.doi10.1186/s12874-022-01591-zpt_PT
dc.identifier.issn1471-2288
dc.identifier.urihttp://hdl.handle.net/10198/25485
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherBMCpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAMSTAR-2pt_PT
dc.subjectQualitypt_PT
dc.subjectSystematic reviewpt_PT
dc.subjectMeta-analysispt_PT
dc.subjectPortugalpt_PT
dc.titleSystematic reviews and meta-analysis published in indexed Portuguese medical journals: time trends and critical appraisalpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue1pt_PT
oaire.citation.titleBMC Medical Research Methodologypt_PT
oaire.citation.volume22pt_PT
person.familyNamePrada
person.givenNameAna Raquel Russo
person.identifier2667579
person.identifier.ciencia-id051D-B938-7AF9
person.identifier.orcid0000-0003-2290-3692
person.identifier.ridH-4451-2018
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationcc8a6798-b48f-42da-b5a0-62ffa3190288
relation.isAuthorOfPublication.latestForDiscoverycc8a6798-b48f-42da-b5a0-62ffa3190288

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