Optimal search strategy for clinical trials in the Latin American and Caribbean Health Science Literature Database (LILACS)

Castro, Aldemar Araújo; Clark, Otávio; Atallah, Álvaro Nagib

doi:10.1590/s1516-31801997000300004

Cited by 53 publications

(17 citation statements)

References 7 publications

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“…The researchers developed a search strategy based on the strategy developed by Dickersin and colleagues (1994) and the search was conducted in the January 1997 LILACS/CD-ROM, retrieving 38,261 citations that would be analyzed to identify the CT. The goal was to identify all RCT and CCT in every new edition of LILACS for the Cochrane Library (CASTRO et al, 1997). This study has led to the Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde (2002) CT and 399 (55.1%) were incorrectly indexed as other types of study (false negatives).…”

Section: Indexing Of Clinical Trials In Lilacsmentioning

confidence: 99%

“…Although there are several studies on the quality of indexing of other databases (DICKERSIN et al, 2002;GLANVILLE et al, 2006;LEFEBVRE et al, 2008;TALJAARD et al, 2010;WIELAND et al, 2012), there are few studies that evaluate the indexing of CT as a PT in LILACS (CASTRO et al 1997;FREITAS et al, 2005;MORENO FERNANDEZ et al, 2013). Therefore, the objective of this study was to evaluate the adequacy of indexing of CT We excluded journals whose sites were unavailable, with restricted access or whose indexing was in process during the study period.…”

Section: Introductionmentioning

confidence: 99%

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Indexing of clinical trials in LILACS: Assessment of 721 articles published in cardiology journals

et al. 2017

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Systematic reviews are considered the highest level of evidence for decision making in health care issues. One of the first steps of a SR involves identifying all relevant clinical trials on the topic of interest. However, the retrieval of clinical trials in a database partially depends on the article indexing quality. The aim of this article is to evaluate the adequacy of indexing of clinical trials as a publication type in the LILACS database in a sample of articles published in cardiology journals. This cross-sectional study analyzed the indexing quality of clinical trials published between 2008 and 2009 in cardiology journals indexed in LILACS. Two independent reviewers identified and reclassified all original studies published in these journals as being clinical trials or other types of studies. The result of their classification was compared with the indexing publication type produced by LILACS. A total of 721 articles published in 11 cardiology journals were included. The reviewers classified 63 articles as clinical trials; 44 of these were correctly indexed in LILACS, while 19 were indexed as other types of studies (false negatives). The reviewers classified 658 articles as non-clinical trials; 651 were correctly indexed and 7 were incorrectly indexed in LILACS as being clinical trials (false positives). The sensitivity, specificity and global accuracy of LILACS indexing were 69.8%, 98.9% and 96.4% (695/721), respectively. Almost one third of the clinical trials published in LILACS-indexed Cardiology journals are not adequately indexed. The indexing quality of the studies published in these journals must be improved.Keywords: Indexing as topic. Bibliographic databases. Clinical trials as topic. Quality control. Periodicals as topic. Resumo As revisões sistemáticas são consideradas o mais alto nível de evidência para a tomada de decisão em questões de cuidados de saúde. Um dos primeiros passos de uma RS envolve a identificação de todos ensaios clínicos relevantes sobre o tema de interesse. Porém, a recuperação de ensaios clínicos em uma base de dados, depende em parte da qualidade da indexação. O objetivo deste artigo é avaliar a adequação da indexação dos ensaios clínicos como tipo de publicação na base de dados LILACS, em uma amostra de artigos publicados em periódicos de cardiologia. Estudo transversal de análise da indexação dos ensaios clínicos publicados entre 2008-2009 em periódicos de cardiologia na LILACS. Duas revisoras identificaram e reclassificaram, de forma independente, todos os

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Section: Indexing Of Clinical Trials In Lilacsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Indexing of clinical trials in LILACS: Assessment of 721 articles published in cardiology journals

et al. 2017

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“…Os filtros para ensaios clínicos utilizados foram: 1) MEDLINE: filtro da Cochrane Collaboration [4]; 2) LILACS: filtro da Cochrane Collaboration adaptado por Castro et al [5,6]; and 3) Embase: filtro sensível do Hedges Team [7].…”

Section: Estratégia De Busca Da Literatura (Vocabulário Controlado Orunclassified

Análise de Custo-Efetividade da Sinvastatina versus Atorvastatina na Prevenção Secundária de Eventos Cardiovasculares no Sistema Único de Saúde Brasileiro

et al. 2011

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“…Although many studies have already recognised the importance of LILACS in systematic reviews of clinical trials (Betr an et al, 2005;Castro, Clark, & Atallah, 1997, 1999Manriquez, 2009;Manr ıquez, 2008), there are few publications on search strategies to identify DTA studies in this database. Search strategies that do not use specific tools of the LILACS database can miss relevant studies indexed only in it.…”

Section: Introductionmentioning

confidence: 99%

lilacs search strategy for systematic reviews of diagnostic test accuracy studies

Pereira

Puga

Atallah

et al. 2019

Health Info Libraries J

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Background There are few publications on search strategies to identify diagnostic test accuracy (DTA) studies in lilacs. Objective To translate and customise medline search strategies for use in lilacs and assess their retrieval of studies in Cochrane DTA systematic reviews. Method We developed a six‐step process to translate and customise medline search strategies for use in lilacs (iAHx interface). We identified medline search strategies of published Cochrane DTA reviews, translated/customised them for use in lilacs, ran searches in lilacs and compared the retrieval results of our translated search strategy versus the one used in the published reviews. Results Our lilacs search strategies translated/customised from the medline strategies retrieved studies in 70 Cochrane DTA reviews. Only 29 of these reviews stated that they had searched the lilacs database and 21 published their lilacs search strategies. Few had used the lilacs database search tools, none exploded the subject headings, and 86% used only English terms. Conclusion Translating and tailoring a medline search strategy for the lilacs database resulted in the retrieval of DTA studies that would have been missed otherwise.

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Optimal search strategy for clinical trials in the Latin American and Caribbean Health Science Literature Database (LILACS)

Cited by 53 publications

References 7 publications

Indexing of clinical trials in LILACS: Assessment of 721 articles published in cardiology journals

Indexing of clinical trials in LILACS: Assessment of 721 articles published in cardiology journals

Análise de Custo-Efetividade da Sinvastatina versus Atorvastatina na Prevenção Secundária de Eventos Cardiovasculares no Sistema Único de Saúde Brasileiro

lilacs search strategy for systematic reviews of diagnostic test accuracy studies

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