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Evidence-Based Information Retrieval and Resources GEMP 2 © Dr Glenda Myers WHSL 18 th March 2008.

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Presentation on theme: "Evidence-Based Information Retrieval and Resources GEMP 2 © Dr Glenda Myers WHSL 18 th March 2008."— Presentation transcript:

1 Evidence-Based Information Retrieval and Resources GEMP 2 © Dr Glenda Myers WHSL 18 th March 2008

2 EBM Assignment August Will Require You to: –Formulate a clinical question –Find relevant supporting documentation –Evaluate the paper you have chosen This tutorial is for self-study and will help you find a relevant EBM paper and formulate a suitable clinical question

3 Evidence-Based Practice (EBM) Requires the Practitioner to Formulate a Clear Clinical Question Search the Literature for Relevant Clinical Articles Appraise (Analyse) Articles Retrieved for Validity and Applicability How Will the Result Benefit my Patient/s? Apply the Evidence in Practice

4 Evidence-Based Medicine (EBM) Requires Incorporation of – All Previous Searching Skills –All Previous Knowledge of Resources Synthesized with –Clinical Knowledge –Clinical Skills –Diagnostic Acumen

5 Problem Statement Formulation of the Problem the Most Difficult Aspect How to Translate a Clinical Problem into a Search Strategy?

6 Concept (Facet) Analysis – Revision of Search Strategy Is Jogging Good for Pigs? Jogging Pigs Jogging Subset of Data on Both Jogging AND Pigs

7 Concept (Facet) Analysis Jogging Running Pig/s Hog/s OR AND

8 Clinical Problem Statement Can Antibiotics be Used to Treat Adult Pharyngitis? Concepts? Antibiotics √ Pharyngitis √ Adult? Treatment?

9 PICO Filters for EBM Searching Patient/Problem Intervention Comparative Intervention (If Any) Outcome/s

10 See PICO Chart for More Detail Patient/Problem –About the Patient/Problem/Population/ Condition Intervention –Form of Treatment/Diagnostic Test/ Aspect of Healthcare/Exposure Comparative Intervention (If Any) –Eg. Compared with No Intervention/ Placebo Study, etc. Outcome/s –Positive Prevention of Illness/Improvement in Health –Negative Adverse Effects/Side Effects

11 Clinical Problem Statement Can Antibiotics be Used to Treat Adult Pharyngitis? Concepts? Antibiotics √ Pharyngitis √ Adult? Treatment?

12 Concept (Facet) Analysis with PICO Filters Patient/ Problem Inter- vention Compa- rative Inter- vention (If Any) Out- come/s Pharyngitis Antibiotics Adult Treatment OR Therapy AND Concepts Limit Focus

13 Concept Analysis/ EBM Search Strategy Design Is Vital for Formulation of the Clinical Question Use the PICO Chart/Formula to Help you Analyse Your Topic –In Order to Formulate a Clinical Question Now You Need to Search for an Article which You will then Have to Analyse for Your EBM Assignment

14 There are Many Databases you can Use to Search for EBM Articles Start with PubMed –http://www.pubmed.gov?holding=i zawitlib_ffthttp://www.pubmed.gov?holding=i zawitlib_fft

15 Remember to Use MeSH when Searching on PubMed Remember to Check Terms in MeSH Before Adding to Search Bar

16 PubMed (You Can Use the PubMed AND Strategy You Learnt Last Year)

17 Results – Too Much for the Clinician

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19 Limits Date Published Human or Animal Language Gender Subsets for EBM - Either –Core Clinical Journal or – Systematic Reviews –Do NOT use Both Together Type of Article Ages

20 Type of Article for EBM

21 More EBM Article Types Clinical Trials, Phases I – IV Controlled Clinical Trial Evaluation Studies Twin Study Validation Studies Case Reports

22 Systematic Reviews

23 Results Same Article, Different Journals Why?

24 Why is the Same Article Published in Different Journals? One of the Purposes of EBM is to Disseminate New Findings Rapidly Practitioners Tend to Read ONLY in their Field of Specialty If the New Material is Important, it will Need to Reach ALL Affected Practitioners so that they can Alter their Practice Immediately

25 PubMed Has Many Different Ways to Find EBM Specific Material PubMed Search Itself Using Clinical Queries –Clinical Study Category –Also Systematic Reviews within Clinical Queries –Clinical Prediction Guides

26 Using Clinical Queries for EBM Searching in PubMed

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28 Clinical Study Searching You Can Only Use ONE Category at a Time –If You want BOTH Diagnosis as well as Prognosis, you will have to Search Twice You Can Only Use ONE Scope at a Time –Either Narrow or Broad

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30 You May Also Search for Clinical Prediction Guides for EBM

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32 Using Systematic Reviews from the Clinical Queries Page

33 What is a Systematic Review? Used in EBM Searching NOT the Same as a Review Article (which is Background Reading) Includes 6 Steps –Precise Formulation of the Problem –Efficient Search Strategies –Appraisal of Research Designs, Implementations, Analyses –Synthesis of Information (Systematic NOT Selective) –Justified Conclusions –Identification of Gaps in Present Knowledge R egarded as the GOLD STANDARD of EBM Searching

34 Finding Systematic Reviews on PubMed

35 Cochrane Database of Systematic Reviews

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38 Cochrane Library Maintained by Cochrane Collaboration –Prepares, Maintains and Promotes Systematic Reviews of the Effects of Healthcare Interventions Collaborative Review Groups (CRGs) –Many Different Specialties Cochrane Library Covers Several Databases –Began as a Result of Criticism that PubMed Does not Index Comprehensively, especially Foreign Language Publications –Gold Standard for EBM

39 You Can Also Find the Cochrane Database via the Wits Library Home Page http://web.wits.ac.za/Library http://web.wits.ac.za/Library

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45 You Can Also Comment on Cochrane if Agree/Disagree with Review

46 Full Text (Systematic Review) on Cochrane Usually very Long and Detailed

47 A Systematic Review Will Be Long Detailed Will Include –Search Strategy Including Terms Selected from MeSH – Which Databases Searched –Also What Further Study is Required

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49 Other EBM Resources EBMR (EBM Reviews) –ACP Journal Club A Synopsis of Relevant EBM Articles Although it is Full Text IN ACP Journal Club, it is in Fact a Summary of the Article Published Elsewhere Use PubMed to Locate Full Text Article –BMJ’s Clinical Evidence –ACP’s PIER Available via STAT!Ref –Research Resources –E-Databases –Databases by Title –S MDConsult and First Consult

50 Evidence Based Medicine Reviews (EBMR) http://ovidsp.ovid.com http://ovidsp.ovid.com ID and Password Not Required

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52 ACP Journal Club

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56 BMJ’s Clinical Evidence http://web.wits.ac.za/Library http://web.wits.ac.za/Library

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64 Includes Updates EBM Ratings

65 ACP’s PIER from STAT!Ref

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70 Don’t Forget MDConsult and FirstConsult

71 But No Limits

72 Notice Anything About this Article???

73 Searching for Evidence on the Web Netting the Evidence –http://www.shef.ac.uk/scharr/ir/netting SUMSearch –http://sumsearch.uthscsa.eduhttp://sumsearch.uthscsa.edu TRIP (Turning Research into Practice) –http://www.tripdatabase.com/index.htmlhttp://www.tripdatabase.com/index.html

74 Netting the Evidence

75 http://sumsearch.uthscsa.edu

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80 SUMSearch Searches Wikipedia PubMed –Including Systematic Reviews Practice Guidelines Cochrane –CDSR, DARE (Abstracts) –Including Systematic Reviews

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82 TRIP (Turning Research into Practice) http://www.tripdatabase. com

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88 In Summary Databases for EBM Searching –PubMed; MDConsult; Cochrane Library (Not Necessarily in That Order!!) –Find the One You Feel Gives Good Results Journals –http://web.wits.ac.za/Libraryhttp://web.wits.ac.za/Library Evidence-based … Titles Textbooks –Clinical Evidence –ACP’s PIER EBM Search Engines –SUMSearch, TRIP Internet Resources –NettingtheEvidence

89 You Will Need to Complete the Formulation of the Clinical Question Assignment Practice EBM Searching –Try ALL the EBM Resources You Have Seen in this Tutorial


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