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Tool for filtering PubMed search results by sample size

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dc.contributor.author Baladrón, Carlos
dc.contributor.author Santos Lozano, Alejandro
dc.contributor.author Aguiar, Javier M.
dc.contributor.author Lucía Mulas, Alejandro
dc.contributor.author Martín Hernández, Juan
dc.date.accessioned 2019-01-29T19:03:20Z
dc.date.available 2019-01-29T19:03:20Z
dc.date.issued 2018
dc.identifier.citation Baladrón, C., Santos-Lozano, A., Aguiar, J. M., Lucia, A., & Martín-Hernández, J. (2018). Tool for filtering PubMed search results by sample size. Journal of the American Medical Informatics Association, 25(7), 774-779. https://doi.org/10.1093/jamia/ocx155 spa
dc.identifier.issn 1067-5027
dc.identifier.issn 1527-974X
dc.identifier.uri http://hdl.handle.net/11268/7765
dc.description.abstract The most used search engine for scientific literature, PubMed, provides tools to filter results by several fields. When searching for reports on clinical trials, sample size can be among the most important factors to consider. However, PubMed does not currently provide any means of filtering search results by sample size. Such a filtering tool would be useful in a variety of situations, including meta-analyses or state-of-the-art analyses to support experimental therapies. In this work, a tool was developed to filter articles identified by PubMed based on their reported sample sizes. Materials and Methods A search engine was designed to send queries to PubMed, retrieve results, and compute estimates of reported sample sizes using a combination of syntactical and machine learning methods. The sample size search tool is publicly available for download at http://ihealth.uemc.es. Its accuracy was assessed against a manually annotated database of 750 random clinical trials returned by PubMed. Results Validation tests show that the sample size search tool is able to accurately (1) estimate sample size for 70% of abstracts and (2) classify 85% of abstracts into sample size quartiles. Conclusions The proposed tool was validated as useful for advanced PubMed searches of clinical trials when the user is interested in identifying trials of a given sample size. spa
dc.description.sponsorship SIN FINANCIACIÓN spa
dc.language.iso spa spa
dc.title Tool for filtering PubMed search results by sample size spa
dc.type article spa
dc.description.impact 4.270 JCR (2017) Q1, 13/148 Computer Science, Information Systems, 8/105 Comouter Science, Interdisciplinary Applications, 11/94 Health Care Sciences & Services spa
dc.identifier.doi 10.1093/jamia/ocx155
dc.rights.accessRights closedAccess spa
dc.subject.uem Medicina spa
dc.subject.uem Investigación spa
dc.subject.unesco Metodología spa
dc.subject.unesco Actividad científica spa
dc.description.filiation UEM spa
dc.peerreviewed Si spa


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