Finding the Best Evidence: Strategies for Formulating and Conducting Effective Searches

Finding the Best Evidence: Strategies for Formulating and Conducting Effective Searches
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Learn how to formulate a focused question, turn it into a search query, and search databases such as TRIP and PubMed. Discover how to run advanced searches on PubMed and use the Cochrane Library to find high-quality evidence. Use the PICO framework to define your patient, problem, population, intervention, comparison, and outcome.

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About Finding the Best Evidence: Strategies for Formulating and Conducting Effective Searches

PowerPoint presentation about 'Finding the Best Evidence: Strategies for Formulating and Conducting Effective Searches'. This presentation describes the topic on Learn how to formulate a focused question, turn it into a search query, and search databases such as TRIP and PubMed. Discover how to run advanced searches on PubMed and use the Cochrane Library to find high-quality evidence. Use the PICO framework to define your patient, problem, population, intervention, comparison, and outcome.. The key topics included in this slideshow are . Download this presentation absolutely free.

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Slide1Owen CoxallBodleian Health Care Libraries Finding the best evidence

Slide2Session objectives• Formulate a focused question • Turn a focused question into a search • Search TRIP & PubMed • Run an Advanced search on PubMed • Cochrane Library

Slide3Formulate a focussed questionP atient /  P roblem /  P opulation I ntervention C omparison O utcome

Slide4ScenarioTom , a smoker of 20 years goes to his GP to ask for help with stopping smoking. He’s tried various methods in the past but nothing has worked so far, so asks the GP whether acupuncture might be a good option.

Slide5Our PICOP   = Smoking I   = Acupuncture C   = N/A O   = Stopping smoking Is acupuncture an effective way of stopping smoking?

Slide6Quick search: DemonstrationTRIP www.tripdatabase.com PubMed Clinical Queries www.pubmed.gov

Slide7Hands-onFormulate a focussed question – Use your own question – Record the search terms you’re using Run a quick search on TRIP www.tripdatabase.com Run a quick search on PubMed Clinical Queries www.pubmed.gov

Slide8Run a full search strategy: Why bother?Too few results Too many results Irrelevant results Submitting a funding proposal Writing a guideline Conducting a systematic review

Slide9Developing a search strategyTake your PICO and think about: – synonyms – using and/or – phrases – truncation

Slide10Combine terms withOR smoking tobacco Smoking  OR  tobacco – either term can be present

Slide11Combine terms withAND Smoking  AND  acupuncture – both terms must be present      acupuncture smoking

Slide12Phrases and truncationTake a common word stem and look for spelling variations e.g. ◦ psycho* - will retrieve papers psychosis, psychoses, psychotic…but also psychology, psychological… Phrase searching ◦ Use double quote marks if you want words to appear next to each other e.g. “psychotic episode”

Slide13Develop a search strategyUsing  OR  then  AND to  broaden  then  focus  the search P I O smoker* or smoking or tobacco acupuncture or acupressure cessation or stop* or quit* and and

Slide14Perform a search on PubMedwww.pubmed.gov

Slide15Searching tips: PubMedSubject searching - use MeSH – Subject headings added to articles on Medline – Search the MeSH Database Finding similar articles – use the ‘Related articles’ link

Slide16Search the Cochrane LibraryInternational Cochrane Collaboration >90 countries effects  of interventions Includes: Full-text Systematic Reviews Abstracts to further SRs and RCTs Available at: http://www.thecochranelibrary.com

Slide17ResourcesCochrane Library www.thecochranelibrary.com PubMed www.pubmed.gov TRIP www.tripdatabase.com Other sources – CEBM web-site – EBM tools www.cebm.net

Slide18HelpFinding the Evidence tutorials: – http://www.bodleian.ox.ac.uk/medicine/information_skills/scr eencasts PubMed – Short online tutorials – Quick guides to PubMed – basics, MeSH search and MyNCBI http://www.nlm.nih.gov/bsd/disted/pubmed.html

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