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1. The efficiency of database searches for creating systematic reviews was improved by search filters. (PubMed)

The efficiency of database searches for creating systematic reviews was improved by search filters. To compare Clinical Queries (CQs) for randomized trials of therapy 'methods' and 'NOT' limits search filters with Cochrane methods filters.Analytic survey of Cochrane reviews as the reference standard for retrieving studies included in the reviews ("included studies [ISs]"). The sensitivity and precision of Cochrane content terms + Cochrane methods terms were compared in MEDLINE and Embase (...) eligible study [NNR] 38) followed by the CQ-B (1.05%, NNR 95), Cochrane search (0.51%, NNR 198), CQ-S + limits (0.34%, NNR 296), and CQ-S filters (0.31%, NNR 325).For systematic reviews of therapeutic interventions, the efficiency of searches in MEDLINE and Embase was better served by the CQs for therapy studies with balanced methods filter and NOT limits.Copyright © 2017 Elsevier Inc. All rights reserved.

2017 Journal of Clinical Epidemiology

2. Search strategies to identify observational studies in MEDLINE and Embase. (PubMed)

Search strategies to identify observational studies in MEDLINE and Embase. Systematic reviews are essential for decision-making. Systematic reviews on observational studies help answer research questions on aetiology, risk, prognosis, and frequency of rare outcomes or complications. However, identifying observational studies as part of systematic reviews efficiently is challenging due to poor and inconsistent indexing in literature databases. Search strategies that include a methodological (...) filter focusing on study design of observational studies might be useful for improving the precision of the search performance.To assess the sensitivity and precision of a search strategy with a methodological filter to identify observational studies in MEDLINE and Embase.We searched MEDLINE (1946 to April 2018), Embase (1974 to April 2018), CINAHL (1937 to April 2018), the Cochrane Library (1992 to April 2018), Google Scholar and Open Grey in April 2018, and scanned reference lists

2019 Cochrane

3. Assessing the performance of methodological search filters to improve the efficiency of evidence information retrieval: five literature reviews and a qualitative study

study Lefebvre C, Glanville J, Beale S, Boachie C, Duffy S, Fraser C, Harbour J, McCool R & Smith L. Record Status This is a bibliographic record of a published health technology assessment from a member of INAHTA. No evaluation of the quality of this assessment has been made for the HTA database. Citation Lefebvre C, Glanville J, Beale S, Boachie C, Duffy S, Fraser C, Harbour J, McCool R & Smith L.. Assessing the performance of methodological search filters to improve the efficiency of evidence (...) Assessing the performance of methodological search filters to improve the efficiency of evidence information retrieval: five literature reviews and a qualitative study Assessing the performance of methodological search filters to improve the efficiency of evidence information retrieval: five literature reviews and a qualitative study Assessing the performance of methodological search filters to improve the efficiency of evidence information retrieval: five literature reviews and a qualitative

2018 Health Technology Assessment (HTA) Database.

4. Development and validation of search filters to find articles on palliative care in bibliographic databases. (PubMed)

Development and validation of search filters to find articles on palliative care in bibliographic databases. Healthcare professionals and researchers in the field of palliative care often have difficulties finding relevant articles in online databases. Standardized search filters may help improve the efficiency and quality of such searches, but prior developed filters showed only moderate performance.To develop and validate a specific search filter and a sensitive search filter for the field (...) of palliative care.We used a novel, objective method for search filter development. First, we created a gold standard set. This set was split into three groups: term identification, filter development, and filter validation set. After creating the filters in PubMed, we translated the filters into search filters for Ovid MEDLINE, Embase, CINAHL, PsychINFO, and Cochrane Library. We calculated specificity, sensitivity and precision of both filters.The specific filter had a specificity of 97.4%, a sensitivity

2019 Palliative medicine

5. Searching for health equity: validation of a search filter for ethnic and socioeconomic inequalities in transport. (PubMed)

Searching for health equity: validation of a search filter for ethnic and socioeconomic inequalities in transport. Efforts to improve health equity should be informed by the best available evidence. However, equity-related research is inconsistently indexed, and uses a variety of terms to describe key concepts, making it difficult to reliably identify all relevant studies. We report the development and validation of a search strategy for studies investigating whether the effects (...) of interventions differ by ethnicity or socio-economic status, using the field of transport and health as an example.Adapting previously described methods, we followed four steps: generation of a test set of eligible studies, search strategy development, search strategy validation, and documentation.Drawing from 12 systematic reviews, supplemented by additional studies identified by experts and colleagues, we identified a test set of 11 studies that met our eligibility criteria. We assigned five studies

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2019 Systematic reviews

6. Filtered versus Non-Filtered Needles for Withdrawing Medication from Glass Ampoules

of filtered needles to withdraw medication from glass ampoules? KEY FINDINGS No relevant literature was identified regarding the use of filtered versus non-filtered needles to withdraw medication from glass ampoules. References of potential interest are provided in the appendix. METHODS A limited literature search was conducted on key resources including PubMed, The Cochrane Library, CINAHL, ECRI, University of York Centre for Reviews and Dissemination (CRD) databases, Canadian and major international (...) Filtered versus Non-Filtered Needles for Withdrawing Medication from Glass Ampoules Disclaimer: The Rapid Response Service is an information service for those involved in planning and providing health care in Canada. Rapid responses are based on a limited literature search and are not comprehensive, systematic reviews. The intent is to provide a list of sources of the best evidence on the topic that CADTH could identify using all reasonable efforts within the time allowed. Rapid responses

2015 Canadian Agency for Drugs and Technologies in Health - Rapid Review

7. No suitable precise or optimized epidemiologic search filters were available for bibliographic databases. (PubMed)

No suitable precise or optimized epidemiologic search filters were available for bibliographic databases. To determine a suitable approach to a systematic search for epidemiologic publications in bibliographic databases. For this purpose, suitable sensitive, precise, and optimized filters were to be selected for MEDLINE searches. In addition, the relevance of bibliographic databases was determined.Epidemiologic systematic reviews (SRs) retrieved in a systematic search and company dossiers were (...) screened to identify epidemiologic publications (primary studies and SRs) published since 2007. These publications were used to generate a test and validation set. Furthermore, each SR's search strategy was reviewed, and epidemiologic filters were extracted. The search syntaxes were validated using the relative recall method.The test set comprises 729 relevant epidemiologic publications, of which 566 were MEDLINE-indexed. About 27 epidemiologic filters were extracted. One suitable sensitive filter

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2016 Journal of Clinical Epidemiology

8. PatchMatch Filter: Edge-Aware Filtering Meets Randomized Search for Visual Correspondence. (PubMed)

PatchMatch Filter: Edge-Aware Filtering Meets Randomized Search for Visual Correspondence. Though many tasks in computer vision can be formulated elegantly as pixel-labeling problems, a typical challenge discouraging such a discrete formulation is often due to computational efficiency. Recent studies on fast cost volume filtering based on efficient edge-aware filters provide a fast alternative to solve discrete labeling problems, with the complexity independent of the support window size (...) size. But, its pixel-wise randomized search and fragmented data access within the 3D cost volume seriously hinder the application of efficient cost slice filtering. This paper presents a generic and fast computational framework for general multi-labeling problems called PatchMatch Filter (PMF). We explore effective and efficient strategies to weave together these two fundamental techniques developed in isolation, i.e., PatchMatch-based randomized search and efficient edge-aware image filtering

2016 IEEE Transactions on Pattern Analysis and Machine Intelligence

9. rasbhari: Optimizing Spaced Seeds for Database Searching, Read Mapping and Alignment-Free Sequence Comparison (PubMed)

rasbhari: Optimizing Spaced Seeds for Database Searching, Read Mapping and Alignment-Free Sequence Comparison Many algorithms for sequence analysis rely on word matching or word statistics. Often, these approaches can be improved if binary patterns representing match and don't-care positions are used as a filter, such that only those positions of words are considered that correspond to the match positions of the patterns. The performance of these approaches, however, depends on the underlying (...) patterns. Herein, we show that the overlap complexity of a pattern set that was introduced by Ilie and Ilie is closely related to the variance of the number of matches between two evolutionarily related sequences with respect to this pattern set. We propose a modified hill-climbing algorithm to optimize pattern sets for database searching, read mapping and alignment-free sequence comparison of nucleic-acid sequences; our implementation of this algorithm is called rasbhari. Depending on the application

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2016 PLoS computational biology

10. A Multivariate Mixture Model to Estimate the Accuracy of Glycosaminoglycan Identifications Made by Tandem Mass Spectrometry (MS/MS) and Database Search (PubMed)

/HS GAGs. This analysis makes it possible to filter large MS/MS database search results with predictable false identification error rates.© 2017 by The American Society for Biochemistry and Molecular Biology, Inc. (...) A Multivariate Mixture Model to Estimate the Accuracy of Glycosaminoglycan Identifications Made by Tandem Mass Spectrometry (MS/MS) and Database Search We present a statistical model to estimate the accuracy of derivatized heparin and heparan sulfate (HS) glycosaminoglycan (GAG) assignments to tandem mass (MS/MS) spectra made by the first published database search application, GAG-ID. Employing a multivariate expectation-maximization algorithm, this statistical model distinguishes correct from

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2016 Molecular & cellular proteomics : MCP

11. Pruning Emtree: Does Focusing Embase Subject Headings Impact Search Strategy Precision and Sensitivity?

on the epidemiology of the reviews we are analyzing. Search strategies for bibliographic databases MECIR guidance requires that authors present the exact search strategy (or strategies) used for each database in an appendix, including any limits and filters used, so that it could be replicated. ESSENTIAL All reviews in this project must have the full Embase and MEDLINE strategies. We will note whether other strategies are recorded so that we can report on the epidemiology of the reviews we are analyzing (...) 1 Impact Search Strategy Precision and Sensitivity? 1. BACKGROUND Embase is a key database to be searched when undertaking health technology assessments (HTAs). Despite its overlap of coverage with MEDLINE, much empirical research demonstrates that it contains unique content; 1 which has meant that it should be searched to inform HTAs. Recent developments within The Cochrane Collaboration to incorporate Embase records reporting randomized controlled trials (RCTs) have illustrated

2015 Canadian Agency for Drugs and Technologies in Health - Rapid Review

12. Development and validation of a MEDLINE search filter/hedge for degenerative cervical myelopathy. (PubMed)

to 97% over the three reviews. Of the 42 articles returned from 3 recent systematic reviews, all were identified by the filter.We have developed a highly sensitive hedge for the research of DCM. Whilst precision is similarly low as other hedges, this search filter can be used as an adjunct for DCM search strategies. (...) Development and validation of a MEDLINE search filter/hedge for degenerative cervical myelopathy. Degenerative cervical myelopathy (DCM) is a common condition with many unmet clinical needs. Pooled analysis of studies is an important tool for advancing medical understanding. This process starts with a systematic search of the literature. Identification of studies in DCM is challenged by a number of factors, including non-specific terminology and index terms. Search filters or HEDGEs, are search

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2018 BMC medical research methodology

13. Tool for filtering PubMed search results by sample size. (PubMed)

to support experimental therapies. In this work, a tool was developed to filter articles identified by PubMed based on their reported sample sizes.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 (...) Tool for filtering PubMed search results by sample size. 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

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2018 Journal of the American Medical Informatics Association

14. The development of search filters for adverse effects of surgical interventions in medline and Embase (PubMed)

strategies in medline and Embase could achieve approximately 90% relative recall. Recall could be further improved with the addition of specific adverse effects terms to the search strategies.We have derived and validated a novel search filter that has reasonable performance for identifying adverse effects of surgical interventions in medline and Embase. However, we appreciate the limitations of our methods, and recommend further research on larger sample sizes and prospective systematic reviews.© 2018 (...) The development of search filters for adverse effects of surgical interventions in medline and Embase Search filter development for adverse effects has tended to focus on retrieving studies of drug interventions. However, a different approach is required for surgical interventions.To develop and validate search filters for medline and Embase for the adverse effects of surgical interventions.Systematic reviews of surgical interventions where the primary focus was to evaluate adverse effect(s

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2018 Health Information and Libraries Journal

15. Search strategies to identify diagnostic accuracy studies in MEDLINE and EMBASE. (PubMed)

Search strategies to identify diagnostic accuracy studies in MEDLINE and EMBASE. A systematic and extensive search for as many eligible studies as possible is essential in any systematic review. When searching for diagnostic test accuracy (DTA) studies in bibliographic databases, it is recommended that terms for disease (target condition) are combined with terms for the diagnostic test (index test). Researchers have developed methodological filters to try to increase the precision (...) of these searches. These consist of text words and database indexing terms and would be added to the target condition and index test searches.Efficiently identifying reports of DTA studies presents challenges because the methods are often not well reported in their titles and abstracts, suitable indexing terms may not be available and relevant indexing terms do not seem to be consistently assigned. A consequence of using search filters to identify records for diagnostic reviews is that relevant studies might

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2013 Cochrane

16. Development and testing of a medline search filter for identifying patient and public involvement in health research (PubMed)

Development and testing of a medline search filter for identifying patient and public involvement in health research Research involving the public as partners often proves difficult to locate due to the variations in terms used to describe public involvement, and inability of medical databases to index this concept effectively.To design a search filter to identify literature where patient and public involvement (PPI) was used in health research.A reference standard of 172 PPI papers was formed (...) . The references were divided into a development set and a test set. Search terms were identified from common words, phrases and synonyms in the development set. These terms were combined as a search strategy for medline via OvidSP, which was then tested for sensitivity against the test set. The resultant search filter was then assessed for sensitivity, specificity and precision using a previously published systematic review.The search filter was found to be highly sensitive 98.5% in initial testing. When

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2017 Health Information and Libraries Journal

17. Assessing the performance of methodological search filters to improve the efficiency of evidence information retrieval: five literature reviews and a qualitative study. (PubMed)

review filters, in particular the Cochrane RCT and the McMaster Hedges filters, were most frequently mentioned. The majority indicated that they used different filters depending on the requirement for sensitivity or precision. Over half of the respondents used the filters available in databases. Interviewees used various approaches when using and adapting search filters. Respondents suggested that the main factors that would make choosing a filter easier were the availability of critical appraisals (...) Assessing the performance of methodological search filters to improve the efficiency of evidence information retrieval: five literature reviews and a qualitative study. Effective study identification is essential for conducting health research, developing clinical guidance and health policy and supporting health-care decision-making. Methodological search filters (combinations of search terms to capture a specific study design) can assist in searching to achieve this.This project investigated

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2017 Health technology assessment (Winchester, England)

18. Protocol: a systematic review of studies developing and/or evaluating search strategies to identify prognosis studies. (PubMed)

systematic review. However, within prognosis research, this is challenging due to poor reporting and inconsistent use of available indexing terms in electronic databases. Whilst many published search filters exist for finding clinical trials, this is not the case for prognosis studies. This systematic review aims to identify and compare existing methodological filters developed and evaluated to identify prognosis studies of any of the three main types: overall prognosis, prognostic factors (...) , and prognostic [risk prediction] models.Primary studies reporting the development and/or evaluation of methodological search filters to retrieve any type of prognosis study will be included in this systematic review. Multiple electronic bibliographic databases will be searched, grey literature will be sought from relevant organisations and websites, experts will be contacted, and citation tracking of key papers and reference list checking of all included papers will be undertaken. Titles will be screened

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2017 Systematic reviews

19. Development of a Search Strategy for an Evidence Based Retrieval Service. (PubMed)

and saved search strategies.Answers to all 6 questions using the PICO framework were found. A higher number of systematic reviews were obtained using a 2 PICO element search compared to a 4 element search. A more optimal choice of search is a combination of both text words and MeSH terms. Despite searching using the Systematic Review filter, many non-systematic reviews or narrative reviews were found in PubMed. There was poor overlap between outcomes of searches using different databases. The duration (...) Development of a Search Strategy for an Evidence Based Retrieval Service. Physicians are often encouraged to locate answers for their clinical queries via an evidence-based literature search approach. The methods used are often not clearly specified. Inappropriate search strategies, time constraint and contradictory information complicate evidence retrieval.Our study aimed to develop a search strategy to answer clinical queries among physicians in a primary care setting.Six clinical questions

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2016 PLoS ONE

20. How to identify existing literature on patients' knowledge, views, and values: the development of a validated search filter (PubMed)

How to identify existing literature on patients' knowledge, views, and values: the development of a validated search filter The research sought to establish validated search filters for retrieval of studies on patients' knowledge and values.Two nonprofit organizations in the Netherlands were studied for guideline development.An existing filter was adapted to three bibliographic interfaces. After defining the scope, a reference database was built for the development of the new filters (...) . The performance of the new filters was validated in different disease categories.Sensitivity, specificity, precision, negative predictive value, and accuracy were (%): 90.5/98/77/99.2/97 (MEDLINE-Ovid), 90.1/98.8/79.3/99.5/98.3 (PubMed), and 93.1/98.4/81.8/99.6/98.7 (Embase).The filters provide pragmatic tools for searching for patients' issues. Further optimization and validation is recommended.

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2016 Journal of the Medical Library Association : JMLA

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