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How to practice EBP: Finding the Evidence

How to practice EBP: Finding the Evidence. September 2009 15th Oxford Workshop in Teaching Evidence-based Practice . Session objectives. Formulate an answerable question Turn an answerable question into a search strategy Apply the search strategy to PubMed & the Cochrane Library.

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How to practice EBP: Finding the Evidence

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  1. How to practice EBP:Finding the Evidence September 2009 15th Oxford Workshop in Teaching Evidence-based Practice

  2. Session objectives • Formulate an answerable question • Turn an answerable question into a search strategy • Apply the search strategy to PubMed & the Cochrane Library

  3. Formulating an answerablequestion Patient / Problem / Population Intervention Comparison Outcome

  4. Scenario Tom, 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.

  5. Answerable question P: smoking I: acupuncture C: N/A O: cessation Answerable question? Is acupuncture effective as a smoking cessation technique?

  6. Answerable question to search strategy Using OR then ANDto broaden then focus the search and and

  7. Combining terms withor Smoking or tobacco – either term can be present smoking tobacco

  8. Combining terms withand Smoking and acupuncture – both terms must be present smoking acupuncture

  9. Search strategy tosearching PubMed Demonstration of a quick search on clinical queries

  10. Hands-on • Formulate an answerable question • Use your own question or one of the examples in your pack • Record the search terms you’re using • Run a quick search on PubMed Clinical Queries http://www.pubmed.gov • Record the details of the article that ‘best’ answers your question

  11. Further searching tips:PubMed • Step-by-step searching • Subject searching - use MeSH • Subject headings added to articles on Medline • Search the MeSH Database • Finding similar articles – use the ‘Related articles’ link

  12. The Cochrane Library • Specialist database including articles on clinical and cost effectiveness of interventions: • Systematic reviews – Cochrane Database of Systematic Reviews & DARE • RCTs – Central • Economic evaluations - NHSEED • Free access in the UK at http://www.thecochranelibrary.com • Other countries check “access options” at http://www.cochrane.org

  13. The Cochrane Library: Demonstration of a search in the Cochrane Library

  14. Hands-on • Take your answerable question: • Run further searches on PubMedhttp://www.pubmed.gov • Run a search on the Cochrane Libraryhttp://www.thecochranelibrary.com

  15. Resources • Cochrane Libraryhttp://www.thecochranelibrary.com • PubMedhttp://www.pubmed.gov • Other sources – CEBM web-site – EBM tools • http://www.cebm.net

  16. Help • PubMed • Short online tutorials • Quick guides to PubMed – basics, MeSH search and MyNCBI http://www.nlm.nih.gov/bsd/disted/pubmed.html • The Cochrane Library • Online tutorial – several languages http://www3.interscience.wiley.com/aboutus/demo/ • User guides – several languages http://www3.interscience.wiley.com/cgi-bin/mrwhome/106568753/HELP_Cochrane.html

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