Baylor Health Sciences Library PubMed Tutorial


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Baylor Health Sciences Library PubMed Tutorial

  1. 1. PubMed Database Searching Baylor Health Sciences Library Created by Mary Sarkes
  2. 2. Baylor Health Sciences Library E-Resources BHSL Website: Note: The library’s link appears under Clinical Links on the MyBaylor website. The library may be accessed through BCD’s Exchange website.
  3. 3. PubMed • • Date Range: 1945-Present • Over 23 million citations – Medicine – Dentistry – Nutrition – Nursing and allied health professions – Links to integrated NCBI molecular biology and chemical databases MEDLINE is the authoritative bibliographic database of the National Library of Medicine, delivering comprehensive scientific records to articles in the biomedical and life sciences. Coverage is extensive and international in scope.
  4. 4. PubMed Keyword Searching • In search box on main page: hypertension Searching by keyword means PubMed is looking through its bibliographic records (title, abstract, author, journal name, etc.) for the exact term you’ve entered.
  5. 5. PubMed Results Page Next Step: Filters Note: Brackets around a title means article is not in English
  6. 6. Focus Search Through Limits • Click on Show Additional Filters Focusing helps you… a) Obtain a more manageable number of citations to review. b) Retrieve more relevant articles.
  7. 7. Applied Filters Note: Select the following Filters Filter options also include types of article, search fields, ages and gender. Results of focusing search.
  8. 8. More Than One Keyword? • Use Boolean operators to connect keywords – AND (combine terms and narrow search) – OR (combine terms and expand search) – NOT (exclude terms and narrow search) Commands: AND = (both) OR = (either) NOT = (without) (A) AND (B) (A) OR (B) (A) NOT (B) Capitalize Commands
  9. 9. Combining Keywords • Sample Search Question: – Need meta analyses examining hypertension and diabetes in women. • In search box on main page: hypertension AND diabetes Search combines terms diabetes AND hypertension and retrieves information that contains both keywords. Note: Command capitalized Search Tip 1: Use filters, instead of keywords, for age groups or gender if they are a component of your search question. Search Tip 2: Use filters, instead of keywords, for article types if they are a component of your search question.
  10. 10. More Than One Keyword Search cont. Note: Filters from previous search were still in place…when needed, click Clear to deactivate and alter limits Add the following Filters: -Publication Date (last 5 years) -Article Type: Meta Analysis -Gender: Female Our results have now been focused to meta analyses examining hypertension and diabetes in women.
  11. 11. Tips on Keyword Searching • Use an * at the end of a search term to search multiple variations of a word – e.g. -> catheter* retrieves catheterize, catheterization, catheters, etc. • Use quotation marks when searching for an exact phrase – e.g. -> “traumatic brain injury”
  12. 12. Subject Searching: MeSH Database Found under More Resources on PubMed’s main page Use MeSH Database to search by subject terms
  13. 13. Subject Searching: MeSH Database • MeSH = Medical Subject Headings • Focused and direct searching method that delivers relevant search results – Saves time – Allows you to better understand the scope of literature in a subject area Human indexers read an article, identify its main topics, and assign standardized subject headings (MeSH terms) to the record. Searching by subject terms means the database exclusively searches MeSH headings and only retrieves records that contain the subject terms you’ve entered. Next: Keyword vs. Subject Searching…
  14. 14. Keyword vs. Subject Next: Using MeSH Keyword (Pros) Keyword (Cons) Useful when no subject heading exists Often yields too many results Allows for flexible method of searching Articles retrieved may not be on-point Useful when research topic is very new/obscure Multiple spellings for a word is a problem (e.g. anesthesia vs. anaesthesia) Useful for in-process or ahead of print articles that do not yet have subject headings assigned Acronyms and synonyms are a problem Subject (Pros) Subject (Cons) Efficient and precise searching method Requires users to learn database’s vocabulary Results retrieved are highly relevant Only searches subject field Produces manageable number of results User relies on indexers to properly assign subject headings Allows use of subheadings to focus search Useful if article has no abstract
  15. 15. MeSH Database •Sample Search Question: What is being done in nursing to prevent patient accidental falls ? •Key Concepts: 1. Accidental Falls (main concept) ↓ (Prevention) 2. Nursing
  16. 16. Entering First MeSH Term (Refer to detailed image in next slide) • Enter first term into search box: accidental falls – A match appears. (Make sure Display setting is on Full.) • Prevention and control appears as subheading. Click box to left of term. – Heading and subheading are now coordinated • Restrict Search to MeSH Major Topic Heading – Ensures subject terms are primary focus of search results • Select: Add to Search Builder 1. 2. 3. 4.
  17. 17. 1. 3. 2. 4.
  18. 18. Combining MeSH terms (Refer to detailed image in next slide) • Now enter second term into search box: Nursing – A list of subject terms ordered by relevancy appears. (Make sure Display setting is on Full.) • Select Nursing MeSH heading by checking box to left of term. • Select: Add to Search Builder • Search complete. Click Search PubMed 1. 2. 3. 4.
  19. 19. 1. 2. 4. Note: Make sure to delete first term before entering second Note: Set Display setting to Full 3.
  20. 20. Subject Searching: Results Added Filters: English, Pub. last 3 years and Nursing Journals Hint: If too few results are found then rerun search w/o restricting to Major topic heading
  21. 21. Viewing PubMed Results: Abstracts •Click on Display Settings (above results) and select Abstract. •Change the number of items displayed and sort them. •Click Apply. Found a good article? Click on Related articles to find more of the same. Articles are ordered by relevancy. Found a good article? Click on Publication Types, MeSH Terms to view the article’s assigned subject headings. Try these new MeSH Terms in your next search. (This is especially useful if you are keyword searching.)
  22. 22. PubMed Clipboard • Check boxes to left of citations/abstracts • Click on the Send to option, and select Clipboard. • Click Add to Clipboard. Collect selected citations and send to clipboard for later action (e.g. print, save and email). Items in Clipboard are saved for 8 hours
  23. 23. PubMed Clipboard cont. On Results page… In Clipboard… Note: Use your web browser's Print command to print citations. Here you can email your citations, send them to your collections, or save them to a file. The # of selected citations sent to Clipboard appears in a green box above results. Click Items to go to Clipboard page
  24. 24. Finding and Printing Full-Text Articles in PubMed • Find and click the for full text access to article Baylor holdings are checked for the item. If electronic full-text is available, then hyperlinks are provided to that article.
  25. 25. No Electronic Full-Text… •Advanced Option: • Check print holdings: Baylor’s in-house journal collection is checked. No luck there? •Document may be ordered from another library via Get It For Me Free service Online request form available: Print request form also available at Library’s Circulation Desk
  26. 26. My NCBI Account • Benefits – Save collection of favorite citations – Save search strategies – Highlight search terms – Create custom tabs – Share favorite collections Sign into My NCBI account
  27. 27. Search History • Click on Advanced to view your search history Viewing your Search History helps you plan your next search move…
  28. 28. Details • Click See More for more search details Viewing Search Details helps you understand how PubMed interpreted your search. This is an especially useful tool during keyword searching.
  29. 29. • In Filters panel go to Article types – Select the appropriate study type… Evidence-Based Literature in PubMed Note: Scroll for additional Publication Types. Click on more to see all Article type options.
  30. 30. Evidence-Based Literature in PubMed cont. Found under PubMed Tools on PubMed’s main page Use Clinical Queries to find high-level evidence studies Clinical Study Categories: Therapy Diagnosis Etiology Prognosis. Filters: Broad = sensitive search Narrow = specific search Results of single search filtered into 3 clinical research areas: Clinical Study Categories, Systematic Reviews, and Medical Genetics
  31. 31. Single Citation Matcher Found under PubMed Tools on the database’s main page. Use it to retrieve a specific citation Enter article’s bibliographic information. Automatic journal title suggestions are provided.
  32. 32. Helpful Search Hints • Develop a clearly defined question – Use the PICO Method to formulate question: • Problem/Patient – Intervention – Comparison - Outcome – Write down the question – Identify and circle key concepts • Start out broad with search then focus through filters • Keep a list of MeSH terms and keywords while searching • Review your Search Details and Search History
  33. 33. PubMed Tutorials If you would like database training please contact the Baylor Health Sciences Library at 214 828 8151