How to Conduct a Literature Review - Obs/Gyn Residents

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Presentation given at the Royal Victoria Hospital on August 24, 2012.

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How to Conduct a Literature Review - Obs/Gyn Residents

  1. 1. How to conduct a lit review: Obs/Gyn Residents 2012Robin Featherstone, MLISLiaison Librarian (Medicine)Life Sciences LibrarySlides: http://www.slideshare.net/featherr
  2. 2. One thing you knowOne thing you want to know
  3. 3. ObjectivesBy the end of this session, you will know:1.How to construct a explicit, comprehensive,reproducible search in PubMed2.How to start a RefWorks account fororganizing your references
  4. 4. Where to begin? At least I’m not responsible for a lit review
  5. 5. Develop a Research Question Why do you need one?
  6. 6. ScenarioYou’re writing a research paper on intravenousimmunoglobulin (IVIG) for treating recurrentmiscarriageThink of a research question related to thistopic...
  7. 7. How questions influence search results High = lots of articles Broad QuestionsRetrieval(# of searchresults) Narrow Questions Low = very few articles Low = mostly High = directly irrelevant articles Relevancy relevant articles
  8. 8. Possible QuestionsBroad:• What causes recurrent miscarriage? What are current treatments for recurrent miscarriage?Narrow:• For women with unexplained recurrent miscarriage, does IVIG increase the live birth rate?Very Narrow:• For African Canadian women above the age of 35 with unexplained recurrent miscarriage, does IVIG increase the live birth rate compared with antibiotic prophylaxis?
  9. 9. What kind of question is this?Narrow:• For women with unexplained recurrent miscarriage, does IVIG increase the live birth rate?
  10. 10. Decide where to search Foreground questions Background questions Novice Expert
  11. 11. Before you start searching…Slow down before you speed up
  12. 12. A quick demo…… of why you need a strategy… … and why you should always check Search Details
  13. 13. Break your question into conceptsFor women with unexplained recurrentmiscarriage, does IVIG increase the livebirth rate?
  14. 14. Find the subject headings for your conceptsFor women with unexplained recurrentmiscarriage, does IVIG increase the livebirth rate?
  15. 15. What is MeSH?
  16. 16. Find MeSH Using a Target Article1. Hum Reprod Update. 1999 Sep-Oct;5(5):475-82.Critical analysis of intravenous immunoglobulin therapy for recurrentmiscarriage.Daya S, Gunby J, Porter F, Scott J, Clark DA.Department of Obstetrics and Gynecology, McMaster University, Hamilton,Ontario,Canada. dayas@fhs.csu.mcmaster.caPMID: 10582784 [PubMed - indexed for MEDLINE]
  17. 17. Find the subject headings for your conceptsFor women with unexplained recurrentmiscarriage, does IVIG increase the livebirth rate? Concept MeSH recurrent miscarriage Abortion, Habitual IVIG Immunoglobulins, Intravenous live birth rate Pregnancy Rate ✖ Pregnancy Outcome ✔
  18. 18. Abortion, Habitual Immunoglobulins, intravenous Pregnancy Outcome
  19. 19. Abortions, habitual ORImmunoglobulins, intravenous Abortions, habitual Immunoglobulins, intravenous
  20. 20. Abortions, habitual ANDImmunoglobulins, intravenous Abortions, habitual Immunoglobulins, intravenous
  21. 21. Abortions, habitual AND Immunoglobulins, intravenous AND Pregnancy Outcome Abortions, habitual Immunoglobulins, intravenous How do you combine these three concepts to answer the question: For women with unexplained recurrent miscarriage, does IVIG increase Pregnancy Outcome the live birth rate?
  22. 22. Abortions, habitual OR Immunoglobulins, intravenous OR Pregnancy Outcome Abortions, habitual Immunoglobulins, intravenous What if I combined with OR? Pregnancy Outcome
  23. 23. Search strategy: For women with unexplained recurrent miscarriage, does IVIG increase the live birth rate? Concept #1 Concept #2 Concept #3 AND AND Immunoglobulins, Abortions, habitual Pregnancy OutcomeMeSH intravenous
  24. 24. Next: Identify Text WordsWhy? Because you want to:1.Include citations for new publications thatdon’t have subject headings2.Include relevant citations that may havedifferent subject headings3.Create a search strategy you can use in otherdatabases/search engines • text words are universally accepted • MeSH only works in PubMed
  25. 25. Search Strategy Concept #1 Concept #2 Concept #3 AND ANDMeSH Immunoglobulins, Abortion, Habitual Pregnancy Outcome OR IntravenousText habitual abortion intravenous pregnancy outcomeWords OR immunoglobulins recurrent miscarriage IVIG live birth OR recurrent abortion still birth OR
  26. 26. Abortions, habitual ORImmunoglobulins, intravenous ✗ Abortions, habitual Immunoglobulins, intravenous
  27. 27. habitual abortion OR recurrent ✓miscarriage OR recurrent abortion habitual abortion recurrent miscarriage recurrent abortion
  28. 28. Search Strategy Concept #1 Concept #2 Concept #3 AND ANDMeSH Immunoglobulins, Abortion, Habitual Pregnancy Outcome OR IntravenousText habitual abortion intravenous pregnancy outcomeWords OR immunoglobulins recurrent miscarriage IVIG live birth OR recurrent abortion still birth OR What’s missing??
  29. 29. Search Strategy Concept #1 Concept #2 Concept #3 AND ANDMeSH Immunoglobulins, Abortion, Habitual Pregnancy Outcome OR IntravenousText “habitual abortion” “intravenous “pregnancy outcome” ORWords OR “habitual immunoglobulins” OR “pregnancy outcomes” abortions” “intravenous OR immunoglobulin” “recurrent miscarriage” OR IVIG OR IVIGs “live birth” OR “live births” “recurrent OR miscarriages” “recurrent abortion” OR “recurrent “still birth” OR “still births” OR abortions”
  30. 30. Run the search
  31. 31. How to Search• Start with your first concept – Search for the subject headings first – Then search text words – Combine these synonymous searches with OR using your search history• Repeat for your second, third, and subsequent concepts• Finally, combine large search results set with AND
  32. 32. How to SearchConcept 1 Concept 2Search #1 = Search #6 =Search #2 = Search #7 =Search #3 = Search #8 =Search #4 = Search #9 =Search #5 = #1 OR #2 OR #3 OR #4 Search #10 = #6 OR #7 OR #8 OR #9 Search #11 = #5 AND #10 Results
  33. 33. PubMed Advanced Search Builder
  34. 34. PubMed Search Strategy((((((("abortion, habitual"[MeSH Terms])) OR (("habitualabortion"[Title/Abstract]) OR "habitual abortions"[Title/Abstract])) OR(("recurrent miscarriage"[Title/Abstract]) OR "recurrentmiscarriages"[Title/Abstract])) OR (("recurrent abortion"[Title/Abstract])OR "recurrent abortions"[Title/Abstract]))) AND (((("immunoglobulins,intravenous"[MeSH Terms])) OR (("intravenousimmunoglobulins"[Title/Abstract]) OR "intravenousimmunoglobulin"[Title/Abstract])) OR ((IVIG[Title/Abstract]) ORIVIGs[Title/Abstract]))) AND ((((("pregnancy outcome"[MeSH Terms]))OR (("pregnancy outcome"[Title/Abstract]) OR "pregnancyoutcomes"[Title/Abstract])) OR (("live birth"[Title/Abstract]) OR "livebirths"[Title/Abstract])) OR (("still birth"[Title/Abstract]) OR "stillbirths"[Title/Abstract]))
  35. 35. Break – 10 mins
  36. 36. Applying filters
  37. 37. Example Filters1. Date of publication – only studies conducted between 2002 and 20121. Species – only humans1. Publication language – only materials written in English or French1. Publication type – only RCTs
  38. 38. Available to McGill students, faculty, staff. Export References to a Citation Manager Available to McGill students, faculty, staff.Information and workshops:http://www.mcgill.ca/library/library-using/citationsoftware
  39. 39. Why should you use a citation manager?
  40. 40. Citation ManagersWhat they do: – Identify and remove duplicate references – Format your bibliography – Organize references into folders – Share your references with colleagues
  41. 41. Recap1. A quality literature review is _____2. Combine synonymous searches with ______3. To find subject headings, use ______4. To run a search in PubMed, use ______5. To import PubMed citations into RefWorks, use the ______
  42. 42. Where to go for Help Robin Featherstone Irina Iavorskaia Liaison Librarian Librarian Life Sciences Library, Women’s Pavilion Library McGill University Royal Victoria Hospital514-398-4475 ext. 09844 514-934-1934 ext 34738 robin.featherstone@mcgill.ca irina.iavorskaia@muhc.mcgill.ca
  43. 43. QuestionsRobin Featherstone, MLISLiaison Librarian (Medicine)robin.featherstone@mcgill.ca Slides: http://www.slideshare.net/featherr

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