79642 20200716101451.0 doi 10.5195/jmla.2019.567 sideral 112247 ART-2019-112247 eng (orcid)0000-0001-8568-3098 Salvador-Oliván, José Antonio Universidad de Zaragoza Errors in search strategies used in systematic reviews and their effects on information retrieval 2019 Access copy available to the general public Unrestricted Objectives: Errors in search strategies negatively affect the quality and validity of systematic reviews. The primary objective of this study was to evaluate searches performed in MEDLINE/PubMed to identify errors and determine their effects on information retrieval. Methods: A PubMed search was conducted using the systematic review filter to identify articles that were published in January of 2018. Systematic reviews or meta-analyses were selected from a systematic search for literature containing reproducible and explicit search strategies in MEDLINE/PubMed. Data were extracted from these studies related to ten types of errors and to the terms and phrases search modes. Results: The study included 137 systematic reviews in which the number of search strategies containing some type of error was very high (92.7%). Errors that affected recall were the most frequent (78.1%), and the most common search errors involved missing terms in both natural language and controlled language and those related to Medical Subject Headings (MeSH) search terms and the non-retrieval of their more specific terms. Conclusions: To improve the quality of searches and avoid errors, it is essential to plan the search strategy carefully, which includes consulting the MeSH database to identify the concepts and choose all appropriate terms, both descriptors and synonyms, and combining search techniques in the free-text and controlled-language fields, truncating the terms appropriately to retrieve all their variants. info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 2.042 2019 INFORMATION SCIENCE & LIBRARY SCIENCE 37 / 87 = 0.425 2019 Q2 T2 0.894 2019 Health Informatics 2019 Q1 Medicine (miscellaneous) 2019 Q1 Library and Information Sciences 2019 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion (orcid)0000-0002-7149-6192 Marco-Cuenca, Gonzalo Universidad de Zaragoza (orcid)0000-0002-3097-8734 Arquero-Avilés, Rosario 3011 040 Universidad de Zaragoza Dpto. Ciencias Doc. Hª Ciencia Área Biblioteconomía y Docum. 107, 2 (2019), 210-221 J. Med. Libr. Assoc. JOURNAL OF THE MEDICAL LIBRARY ASSOCIATION 1536-5050 286745 http://zaguan.unizar.es/record/79642/files/texto_completo.pdf Versión publicada 97991 http://zaguan.unizar.es/record/79642/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:79642 articulos driver 2020-07-16-09:06:25 ARTICLE