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Owen Coxall Bodleian Health Care Libraries

Finding the best evidence. Owen Coxall Bodleian Health Care Libraries. Session objectives. Formulate a focused question Turn a focused question into a search Search TRIP & PubMed Run an Advanced search on PubMed Cochrane Library. Formulate a focussed question.

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Owen Coxall Bodleian Health Care Libraries

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  1. Finding the best evidence Owen CoxallBodleian Health Care Libraries

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

  3. Formulate a focussed question 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. Our PICO P= Smoking I= Acupuncture C= N/A O= Stopping smoking Is acupuncture an effective way of stopping smoking?

  6. Quick search: Demonstration TRIPwww.tripdatabase.com PubMed Clinical Querieswww.pubmed.gov

  7. Hands-on Formulate a focussed question • Use your own question • Record the search terms you’re using Run a quick search on TRIPwww.tripdatabase.com Run a quick search on PubMed Clinical Queries www.pubmed.gov

  8. Run 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

  9. Developing a search strategy Take your PICO and think about: • synonyms • using and/or • phrases • truncation

  10. Combine terms withOR smoking Smoking OR tobacco – either term can be present tobacco

  11. Combine terms withAND Smoking AND acupuncture – both terms must be present smoking acupuncture

  12. Phrases and truncation Take 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”

  13. Develop a search strategy Using OR then ANDto broaden then focus the search and and

  14. Perform a search on PubMed www.pubmed.gov

  15. Searching tips: PubMed Subject searching - use MeSH • Subject headings added to articles on Medline • Search the MeSH Database Finding similar articles – use the ‘Related articles’ link

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

  17. Resources Cochrane Librarywww.thecochranelibrary.com PubMedwww.pubmed.gov TRIPwww.tripdatabase.com Other sources – CEBM web-site – EBM toolswww.cebm.net

  18. Help Finding the Evidence tutorials: • http://www.bodleian.ox.ac.uk/medicine/information_skills/screencasts 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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