While previous studies determined the coverage of databases, we analyzed the actual retrieval from the original searches for systematic reviews. J Immigr Minor Health. Though we occasionally used the regional databases LILACS and SciELO in our reviews, they did not provide unique references in our study. Where should the pharmacy researcher look first? Because of this major limitation, the question of which databases are necessary to retrieve all relevant references for a systematic review remains unanswered. Bramer WM, Giustini D, Kramer BMR. This site needs JavaScript to work properly. If this resulted in extraneous results, the search was subsequently limited using a distinct part of the title or a second author name. 2. A fast and easy research tool for nursing and allied health professionals with access to content coverage including over 50 nursing specialties, speech and language pathology, nutrition, general health and medicine and more. Halladay CW, Trikalinos TA, Schmid IT, Schmid CH, Dahabreh IJ. <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/Annots[ 9 0 R 10 0 R] /MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> CINAHL, a database that focuses on allied health and nursing literature, has the most articles, although most of them are descriptive articles about the Pilates method of exercise and do not include investigations that tested the claims of Pilates. 8600 Rockville Pike Search Limits. Whether a reference is available in a database is important, but whether the article can be found in a precise search with reasonable recall is not only impacted by the databases coverage. Fifty-one of these journals are UK publications. The third key database we identified in this research, Web of Science, is only mentioned as a citation index in the Cochrane Handbook, not as a bibliographic database. Article What is lost when searching only one literature database for articles relevant to injury prevention and safety promotion? 2016;16:113. Michaleff ZA, Costa LO, Moseley AM, Maher CG, Elkins MR, Herbert RD, Sherrington C. CENTRAL, PEDro, PubMed, and EMBASE are the most comprehensive databases indexing randomized controlled trials of physical therapy interventions. If the research question is more interdisciplinary, a broader science database such as Web of Science is likely to add value. The aim of our research is to determine the combination of databases needed for systematic review searches to provide efficient results (i.e., to minimize the burden for the investigators without reducing the validity of the research by missing relevant references). Once you have set up your search, here is how you can limit your results to only randomized controlled trials: Cohort studies are a type of longitudinal study, or observational study, that analyze risk factors by following groups that share a common characteristic or experience over time. Did you know that with a free Taylor & Francis Online account you can gain access to the following benefits? Literature search parameters marginally improved the pooled estimate accuracy for ultrasound in detecting deep venous thrombosis. Unique results from specialized databases that closely match systematic review topics, such as PsycINFO for reviews in the fields of behavioral sciences and mental health or CINAHL for reviews on the topics of nursing or allied health, indicate that specialized databases should be used additionally when appropriate. Of these, 84 references (4.6%) had not been retrieved by our database searches and were not included in our analysis, leaving in total 1746 references. PubMedGoogle Scholar. 2014;21:34354. A multi-disciplinary database, with more than 6,100 full-text periodicals, including more than 5,100 peer-reviewed journals. Disclaimer. Librarian co-authors correlated with higher quality reported search strategies in general internal medicine systematic reviews. Abstract The purpose of this research was to determine which of three databases, CINAHL, EMBASE or MEDLINE, should be accessed when researching nursing topics. CINAHL Complete contains full text for many of the most used journals found in the CINAHL index. McKibbon KA, Haynes RB, Dilks CJW, Ramsden MF, Ryan NC, Baker L, Flemming T, Fitzgerald D. How good are clinical MEDLINE searches? Wright K, Golder S, Lewis-Light K. What value is the CINAHL database when searching for systematic reviews of qualitative studies? Kr Mo@h(fW"\x| Tu?g n=~?@(wg The three databases were searched for citations on topics selected by three nurse researchers and the results were compared. The comparative recall of Google Scholar versus PubMed in identical searches for biomedical systematic reviews: a review of searches used in systematic reviews. This limiter box allows you to select specific article types. 2005 Jan;58(1):20-5. doi: 10.1016/j.jclinepi.2004.06.001. Ignoring one or more of the databases that we identified as the four key databases will result in more precise searches with a lower number of results, but the researchers should decide whether that is worth the >increased probability of losing relevant references. Our experience has shown us that it is also impacted by the ability of the searcher, the accuracy of indexing of the database, and the complexity of terminology in a particular field. Explain how resolving your EBP Project issue will improve . Published reviews were included if the search strategies and results had been documented at the time of the last update and if, at minimum, the databases Embase, MEDLINE, Cochrane CENTRAL, Web of Science, and Google Scholar had been used in the review. To identify whether our searches had found the included references, and if so, from which database(s) that citation was retrieved, each included reference was located in the original corresponding EndNote library using the first author name combined with the publication year as a search term for each specific relevant publication. 3 for the legend of the plots in Figs. In general, we use the first 200 references as sorted in the relevance ranking of Google Scholar. kON0=ArP35x`*[r(DYVBa9BJ2w\LueOJ=i.dR;mmP/P On 5 January 2017, we searched PubMed for articles with the phrase systematic review in the title. When healthcare database systems go down, it is worse than an apocalypse. 2005;58:86773. 2013;66:10517. <>>> To learn about our use of cookies and how you can manage your cookie settings, please see our Cookie Policy. Clipboard, Search History, and several other advanced features are temporarily unavailable. The ratio between number of results per database combination and the total number of results for all databases, The ratio between precision per database combination and the total precision for all databases. Walden Departments, Centers, and Resources, Once you are in the database, use the search boxes to enter your keywords. What is considered acceptable recall for systematic review searches is open for debate and can differ between individuals and groups. HHS Vulnerability Disclosure, Help Some concluded that searching only one database can be sufficient as searching other databases has no effect on the outcome [16, 17]. Nursing & Allied Health SourceTM provides users with reliable healthcare information covering nursing, allied health, alternative and complementary medicine. Halladay et al. I;u?5Z=bL(lWh{d QrX". Of those, 15 could not be included in this research, since they had not searched all databases we investigated here. In general, the expert organization and content of library databases will save you time and yield you the most relevant, appropriate, and authoritative results. Additionally, search strategies are limited to a maximum of 256 characters, which means that creating a thorough search strategy can be laborious. On this page you will learn how to limit your results in CINAHL to: The major strength of our paper is that it is the first large-scale study we know of to assess database performance for systematic reviews using prospectively collected data. We found that two databases previously not recommended as essential for systematic review searching, Web of Science and Google Scholar, were key to improving recall in the reviews we investigated. The databases avail-able include the Cochrane Collaboration, Medline (in various forms such as PubMed), Best Evidence10and Embase.The most widely used and most often recom-mended database isMedline. There are also fewer of them, and they can be harder to find. Special topics databases such as CINAHL and PsycINFO should be added if the topic of the review directly touches the primary focus of a specialized subject database, like CINAHL for focus on nursing and allied health or PsycINFO for behavioral sciences and mental health. Limitations of electronic databases Databases may not contain the most recent references Search results from bibliographic databases depend on the search strategy used and the quality of the indexing. Using data sources beyond PubMed has a modest impact on the results of systematic reviews of therapeutic interventions. This database provides nearly 550 scholarly full text journals focusing on many medical disciplines. These could be retrieved by searching PubMed with the subset as supplied by publisher. The site is secure. We copied from the MeSH tree the top MeSH term directly below the disease category or, in to case of the intervention, directly below the therapeutics MeSH term. The search on substance abuse in pregnancy, not restricted to nursing literature, retrieved better results when searching both MEDLINE and EMBASE. The reviews covered a wide variety of disease, none of which was present in more than 12% of the reviews. Beginning in May 2013, the number of records retrieved from each search for each database was recorded at the moment of searching. "N` ;:"Z,Ov;s90yz` x:Na|8{4Bl9fxbRZk96L.00t4+a6.dx8Uc*$Ea=KhIn+4Byp0>*Wu$(3}sd6[J6\Lx%U J Clin Epidemiol. We selected the domain from a pre-defined set of broad domains, including therapy, etiology, epidemiology, diagnosis, management, and prognosis. The contribution of databases to the results of systematic reviews: a cross-sectional study. <> Subject-specific databases such as CINAHL, PsycINFO, and SportDiscus only retrieved additional included references when the topic of the review was directly related to their special content, respectively nursing, psychiatry, and sports medicine. This implies that 17% of the reviews in the PubMed sample would have achieved an acceptable recall of 95%. Using the prospectively recorded results and the studies included in the publications, we calculated recall, precision, and number needed to read for single databases and databases in combination. Other specialized databases, such as CINAHL or PsycINFO, add unique references to some reviews where the topic of the review is related to the focus of the database. BMC Med Res Methodol. Searching multiple databases for systematic reviews: added value or diminishing returns? The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. Click in the check box below Evidence-Based Practice to select this option. 2011. This study also highlights once more that searching databases alone is, nevertheless, not enough to retrieve all relevant references. Figure5 shows the improvement of precision for 15 databases and database combinations. J Med Libr Assoc. MedicLatinais a unique collection of medical research and investigatory journals from renowned Latin American and Spanish publishers. Other specialized databases, such as CINAHL or PsycINFO, add unique references to some reviews where the topic of the review is related to the focus of the database. Res Synth Methods. Evid Based Libr Inf Pract. California Privacy Statement, Cochrane CENTRAL is absent from the table, as for the five reviews limited to randomized trials, it did not add any unique included references. Disadvantages of Databases 1. This happens, particularly with lesser-used medications and treatments. PubMed Almost all reviews (97%) reported a search in MEDLINE. Phys Ther. PMC For all individual reviews, we determined the median recall, the minimum recall, and the percentage of reviews for which each single database or combination retrieved 100% recall. Provided by the Springer Nature SharedIt content-sharing initiative. All searches in this study were developed and executed by W.M.B. Bethesda, MD 20894, Web Policies >/- 8CqD 0:J AT~Xr Bx:.}U_y>gEdUug1tXA ed! Figure1 shows the percentages of reviews where a certain database combination led to a certain recall. By closing this message, you are consenting to our use of cookies. In 23 reviews included in this research, Scopus was searched. 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