why is medline a good database to use

A case study using a systematic review of frozen shoulder management. We determined the databases that contributed most to the reviews by the number of unique references retrieved by each database used in the reviews. Most of the previous studies did not include these two databases in their research. Since May 2013, the first author prospectively recorded results from systematic review searches that he performed at his institution. [17] found the added value of other databases only for newer, non-indexed references. An overview of the broad topical categories covered in these reviews is given in Table2. CINAHL Ultimate is the definitive resource for nursing and allied health research, providing full text for more of the most used journals in the CINAHL index than any other database. Embase retrieved the most unique included references, followed by MEDLINE, Web of Science, and Google Scholar. Exploring PubMed as a reliable resource for scholarly communications The "Finding the resources for an excellent paper" website was developed by Danielle Swails, Laurie Lyons, and Salima Ibarra for EDUC 265 in the fall of 2007. find full text articles in the Tufts' collections quickly. Lawrence DW. Investigators and information specialists searching for relevant references for a systematic review (SR) are generally advised to search multiple databases and to use additional methods to be able to adequately identify all literature related to the topic of interest [ 1, 2, 3, 4, 5, 6 ]. Accessibility [11][12][13] Most systematic review articles published presently build on extensive searches of MEDLINE to identify articles that might be useful in the review. Melissa Rethlefsen receives funding in part from the National Center for Advancing Translational Sciences of the National Institutes of Health under Award Number UL1TR001067. There are a number of useful features and tools available to improve your search. Site last updated in March 2008. Bramer WM, Giustini D, Kramer BM, Anderson PF. It is laborious for searchers to translate a search strategy into multiple interfaces and search syntaxes, as field codes and proximity operators differ between interfaces. 2014 Jul;102(3):169-76. doi: 10.3163/1536-5050.102.3.006. Review projects at Erasmus MC cover a wide range of medical topics, from therapeutic effectiveness and diagnostic accuracy to ethics and public health. J Med Libr Assoc. Therefore, for this research, a total of 58 systematic reviews were analyzed. Lastly, access to databases is often limited and only available on subscription basis. At Erasmus MC, search strategies for systematic reviews are often designed via a librarian-mediated search service. 2 for the comparison of the recall of Embase, MEDLINE, and Cochrane CENTRAL per review for all identified domains. A service such as MEDLINE strives to balance usability with power and comprehensiveness. The Medline database from the National Library of Medicine (NLM) contains more than 12 million bibliographic citations from over 4,600 international biomedical journals. Levay P, Raynor M, Tuvey D. The contributions of MEDLINE, other bibliographic databases and various search techniques to NICE public health guidance. 2017;33:21724. baseline data: The objective data obtained from a patient or subject set before randomisation and entry in a clinical trial. Part of Syst Rev. It includes bibliographic information for articles from academic journals covering medicine, nursing, pharmacy, dentistry, veterinary medicine, and health care.MEDLINE also covers much of the literature in biology and biochemistry, as . It was launched by the National Library of Medicine in 1964 and was the first large scale, computer based, retrospective search service available to the general public. Almost all reviews (97%) reported a search in MEDLINE. These values were calculated both for all reviews combined and per individual review. PubMed We identified all included references that were uniquely identified by a single database. MEDLINE includes citations from more than 5,200 scholarly journals published around the world. In late 1971, an online version called MEDLINE ("MEDLARS Online") became available as a way to do online searching of MEDLARS from remote medical libraries. We analyzed whether the added value of Web of Science and Google Scholar was dependent of the domain of the review. Beckles Z, Glover S, Ashe J, Stockton S, Boynton J, Lai R, Alderson P. Searching CINAHL did not add value to clinical questions posed in NICE guidelines. [9], MEDLINE added a "publication type" term for randomized controlled trial in 1991 and a MESH subset systematic review in 2001. 2011. Sixteen percent of the included references (291 articles) were only found in a single database; Embase produced the most unique references (n=132). A database of biomedical literature created and maintained by the US National Library of Medicine (NLM, a unit of the National Institutes of Health). For the individual databases and combinations that were used in those reviews, we multiplied the frequency of occurrence in that set of 200 with the probability that the database or combination would lead to an acceptable recall (which we defined at 95%) that we had measured in our own data. 2014;30:1738. Google Scholar. See this image and copyright information in PMC. Bethesda, MD 20894, Web Policies 2002 Spring;21(1):25-33. doi: 10.1300/J115v21n01_02. Abbreviations: EM Embase, ML MEDLINE, WoS Web of Science, GS Google Scholar. - Offers proximity searching capability. This study compares the usefulness of the MEDLINE and CINAHL databases for students on post-registration nursing courses We searched for nine topics, using title words only Identical searches of the two databases retrieved 1162 references, of which 88% were in MEDLINE, 33% in CINAHL and 20% in both sources The relevance of the references was assessed by student reviewers The positive . Based on these, we determined the percentage of reviews where that database combination had achieved 100% recall, more than 95%, more than 90%, and more than 80%. Your privacy choices/Manage cookies we use in the preference centre. It is therefore important to search MEDLINE including the Epub Ahead of Print, In-Process, and Other Non-Indexed Citations references. Based on these calculations, we estimate that the probability that this random set of reviews retrieved more than 95% of all possible included references was 40%. 2013;2:115. MEDLINE Overview - National Library of Medicine The https:// ensures that you are connecting to the FOIA Add to Cart. The database contains more than 28 millions citations, derived from over 5,200 journals in about 40 languages Covering the biomedical and life sciences, and indexed with Medical Subject Headings (MeSH) from the NLM controlled vocabulary. Integrity of Databases for Literature Searches in Nursing: Avoiding Predatory Journals. These are mostly unique PubMed references, which are not assigned MeSH terms, and are often freely available via PubMed Central. Because precision is defined as the number of relevant references divided by the number of total results, we see a strong correlation with the total number of results. Along with the Cochrane Library and a number of other databases, MEDLINE facilitates evidence-based medicine. CINAHL - an overview | ScienceDirect Topics Whether Embase and Web of Science can be replaced by Scopus remains uncertain. It's not complete in the sense that there is nothing left to add. PubMed. Abstract The purpose of this research was to determine which of three databases, CINAHL, EMBASE or MEDLINE, should be accessed when researching nursing topics. [26] found that Cochrane CENTRAL included 95% of all RCTs included in the reviews investigated. MEDLINE is the National Library of Medicine's (NLM) premier bibliographic database that contains references to journal articles in life sciences, with a concentration on biomedicine.. MEDLINE content is searchable via PubMed and constitutes the primary component of PubMed, a literature database developed and maintained by the NLM National Center for Biotechnology Information (NCBI). Figure1 shows the percentages of reviews where a certain database combination led to a certain recall. Ahmadi M, Ershad-Sarabi R, Jamshidiorak R, Bahaodini K. Comparison of bibliographic databases in retrieving information on telemedicine. A recent paper tried to find an acceptable number needed to read for adding an additional database; sadly, however, no true conclusion could be drawn [20]. Optimal database combinations for literature searches in systematic reviews: a prospective exploratory study. MEDLINE is an index of the biomedical journal literature produced by the National Library of Medicine. Originally, the database covered articles starting from 1965, but this has been enhanced, and records as far back as 1781 are now available within the main index. MEDLINE - Wikipedia If an included reference was not found in the EndNote file, we presumed the authors used an alternative method of identifying the reference (e.g., examining cited references, contacting prominent authors, or searching gray literature), and we did not include it in our analysis. Using MEDLINE to find health science journal articles The references to these reviews can be found in Additional file 1. 2004;12:22832. Health Inf Libr J. Medline | Ebsco In 73 of these, the searches and results had been documented by the first author of this article at the time of the last search. The complete results from all databases used for each of the systematic reviews were imported into a unique EndNote library upon search completion and saved without deduplication for this research. In both these reviews, the topic was highly related to the topic of the database. Younger P. Internet-based information-seeking behaviour amongst doctors and nurses: a short review of the literature. WB has received travel allowance from Embase for giving a presentation at a conference. Of the individual databases, Embase had the highest overall recall (85.9%). Wichor M. Bramer. 2014;67:11929. Syst Rev. In addition, Michaleff et al. J Med Libr Assoc. As a library, NLM provides access to scientific literature. This search was used in earlier research [21]. author reply e140. PubMed database contains more than 30 million references of biomedical literature from approximately 7,000 journals. -, Westberg EE, Miller RA. What is considered acceptable recall for systematic review searches is open for debate and can differ between individuals and groups. Q. What are the best databases for a Nursing student to use? However, Embase is only accessible via a paid subscription, which generally makes it challenging for review teams not affiliated with academic medical centers to access. features: find in a library; import citations into EndNote or another bibliographic management tool. [16] Journals that no longer meet the criteria are removed. This research goes beyond retrospectively assessed coverage to investigate real search performance in databases. That is with the generous assumption that the searches in those databases had been designed sensitively enough. 2014;21:34354. The information specialists of Erasmus MC developed an efficient method that helps them perform searches in many databases in a much shorter time than other methods. 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. Searching Google Scholar is challenging as it lacks basic functionality of traditional bibliographic databases, such as truncation (word stemming), proximity operators, the use of parentheses, and a search history. Using the results in this research, review teams can decide, based on their idea of acceptable recall and the desired probability which databases to include in their searches. Health Inf Libr J. We selected the domain from a pre-defined set of broad domains, including therapy, etiology, epidemiology, diagnosis, management, and prognosis. MEDLINE (Medical Literature Analysis and Retrieval System Online, or MEDLARS Online) is a bibliographic database of life sciences and biomedical information. CAS Peer-reviewers try to make sure that the research was well-designed, that the statistics are accurately represented, and that the research is worthy of being shared, i.e. Created by the United States National Library of Medicine, MEDLINE is an authoritative bibliographic database containing citations and abstracts for biomedical and health journals used by health care professionals, nurses, clinicians and researchers. Study data were examined using descriptive statistics and regression analysis to determine the number of information resources used and how they were used in combination with one another. Most reviews did not limit to certain study designs, 9% limited to RCTs only, and another 9% limited to other study types. The other authors declare no competing interests. Searching only Embase produced an NNR of 57 on average, whereas, for the optimal combination of four databases, the NNR was 73. Can Fam Physician. In the other 48%, the recall by Scopus was suboptimal, in one occasion as low as 38%. [13], More than 5,200 biomedical journals are indexed in MEDLINE. Go to: Abstract Objective PubMed's provision of MEDLINE and other National Library of Medicine (NLM) resources has made it one of the most widely accessible biomedical resources globally. 2020 Oct 1;108(4):564-573. doi: 10.5195/jmla.2020.915. The calculation is shown in Table5. The selection of databases used when carrying out literature searching for a systematic review can have a significant impact upon the number of records retrieved and the subsequent stages of the review in terms of time and resources spent as well as the review's conclusions. 2015;10:5068. Lastly, we checked whether the reviews described limiting their included references to a particular study design. J Med Libr Assoc. Though we suspect that searchers who are not information specialists or librarians would have a higher possibility of less well-constructed searches and searches with lower recall, even highly trained searchers differ in their approaches to searching. ", MEDLARS cost $3 million to develop and at the time of its completion in 1964, no other publicly available, fully operational electronic storage and retrieval system of its magnitude existed. The database is freely accessible on the Internet via the PubMed interface and new citations are added Tuesday through Saturday. 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. The database combinations with the highest recall did not reduce the total number of results by large margins. [10], MEDLINE functions as an important resource for biomedical researchers and journal clubs from all over the world. While previous studies determined the coverage of databases, we analyzed the actual retrieval from the original searches for systematic reviews. Based on the number of results per database both before and after deduplication as recorded at the time of searching, we calculated the ratio between the total number of results and the number of results for each database and combination. 2000 Oct;88(4):346-54. Overlaps of multiple database retrieval and citation tracking in dementia care research: a methodological study. We see that reviewers rarely use Web of Science and especially Google Scholar in their searches, though they retrieve a great deal of unique references in our reviews. Identical searches of the two databases retrieved 1162 references, of which 88% were in MEDLINE, 33% in CINAHL and 20% in both sources. Bramer WM, Rethlefsen ML, Mast F, Kleijnen J. Bramer WM, Giustini D, Kramer BMR. doi: 10.1136/jamia.1999.0060006. PubMed does not. -, Mendona EA, Cimino JJ, Johnson SB, Seol YH. Halladay et al. 2015 Dec;12(6):313-27. doi: 10.1111/wvn.12114. What is MEDLINE | IGI Global Cochrane CENTRAL is absent from the table, as for the five reviews limited to randomized trials, it did not add any unique included references. Beginning in May 2013, the number of records retrieved from each search for each database was recorded at the moment of searching. Therefore, we research the probability that single or various combinations of databases retrieve the most relevant references in a systematic review by studying actual retrieval in various databases. Unique references were included articles that had been found by only one database search. These could be retrieved by searching PubMed with the subset as supplied by publisher. MEDLINE is the National Library of Medicine (NLM ) journal citation database. Based on our calculations made by looking at random systematic reviews in PubMed, we estimate that 60% of these reviews are likely to have missed more than 5% of relevant references only because of the combinations of databases that were used. Table3 displays the number of unique results retrieved for each single database. Why Use CINAHL Instead of or in Addition to PubMed? Our earlier research had resulted in 206 systematic reviews published between 2014 and July 2016, in which the first author was affiliated with Erasmus MC [21]. 2021 Apr 1;109(2):275-285. doi: 10.5195/jmla.2021.1129. In 12 reviews (52%), Scopus retrieved 100% of all included references retrieved by Embase or Web of Science. MEDLARS (Medical Literature Analysis and Retrieval System) is a computerised biomedical bibliographic retrieval system. Reviews included in the research. Miles, Wyndham. Some of the key features are highlighted in the following tabs. PubMed is free and publicly available: by using PubMed, researchers can search more than 30 million citations to the biomedical literature. 2023 Mar 21. doi: 10.1007/s10926-023-10110-w. Online ahead of print. Google Scholar. Why Use CINAHL? Google Scholar adds relevant articles not found in the other databases, possibly because it indexes the full text of all articles. MeSH term mapper helps identify the correct terminology/MeSH. [10] and van Enst et al. Objective: This study analyzed data from a study on the value of libraries to understand the specific role that the MEDLINE database plays in relation to other information resources that are available to health care providers and its role in positively impacting patient care. 2008;14:4014. In 1957 the staff of the NLM started to plan the mechanization of the Index Medicus, prompted by a desire for a better way to manipulate all this information, not only for Index Medicus but also to produce subsidiary products. Stevinson C, Lawlor DA. Oermann MH, Wrigley J, Nicoll LH, Ledbetter LS, Carter-Templeton H, Edie AH. 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. Some concluded that searching only one database can be sufficient as searching other databases has no effect on the outcome [16, 17]. Many of the articles reporting on previous research concluded that one database was able to retrieve most included references. -, McKibbon KA, Fridsma DB. Many of the reviews were initiated by members of the departments of surgery and epidemiology. The MEDLINE database contains over 12 million references to scientific literature, with about 3/4 of recent articles including an abstract of the publication. 3. MEDLINE Complete | EBSCO A review of meta-analyses. Because of this major limitation, the question of which databases are necessary to retrieve all relevant references for a systematic review remains unanswered. In 1996, soon after most home computers began automatically bundling efficient web browsers, a free public version of MEDLINE was deployed. This system, called PubMed, was offered to the general online user in June, 1997, when MEDLINE searches via the Web were demonstrated.

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