Search Strategy Design for Systematic Reviews

Search Strategy Design for Systematic Reviews

Search Strategy Design for Systematic Reviews Hello! Eileen Harrington Sarah Over Stephanie Ritchie Nedelina Tchangalova Health & Life Sciences Librarian Engineering Librarian

Public Health Librarian [email protected] [email protected] Agriculture & Natural Resources Librarian Priddy Library Shady Grove [email protected] STEM Library College Park

STEM Library College Park [email protected] STEM Library College Park 2 Workshop Outline 1. Introduction and a definition of a systematic review 2.Guidelines for conducting a systematic review 3. Researchers roles in a systematic review 4.Service providers and search interfaces 5.Structure of a search strategy 6. Search strategies and tools 7. Hands-on activity 8. How librarians can work with you 3

1 Introductio n Lets start with a definition of a systematic review What is a systematic review? How does it differ from a literature review? 5 A properly conducted systematic review faithfully summarizes the evidence from all relevant studies on

the topic of interest, and it does so concisely and transparently. (Cook et al., 1997) 6 The application of strategies that limit bias in the assembly, critical appraisal, and synthesis of all relevant studies on a specific topic. (Porta, 2008) 7 2

Guidelines for conducting systematic reviews Guidelines for SR Cochrane Handbook PRISMA (Part 2, Chapter 6.4) Institute of Medicine Standards for Syst ematic Reviews (IOM) Peer Review of Electronic Search Strate gies (PRESS) Image: http://www.infectioncontrolresults.com 9

Use an expert searcher Excerpts from the Guidelines Include expertise in searching for relevant evidence (IOM Standard 2.1.3) Work with a librarian or other information specialist trained in performing systematic reviews to plan the search strategy ( IOM Standard 3.1.1) Use an independent librarian or other information specialist to peer review the search strategy (IOM Standard 3.1.3) 10 Image: https://saltandlightministriesgh.org/an-expert-searcher/ Address the research question Excerpts from the Guidelines

Is the search question translated well into search concepts? (PRESS Checklist) Design the search strategy to address each key research question (IOM Standard 3.1.2) The structure of the search strategy should be based on the main concepts being examined in a review (Cochrane Handbook 6.4.2) 11 Image: http://ticklethewire.com/tag/john-yervelli-jr/ The search must be reproducible Excerpts from the Guidelines Describe all databases used in the search and date last searched (PRISMA Checklist, #7) Present full electronic search strategy for at

least one database, including any limits used, such that it could be repeated. (PRISMA Checklist, #8) Provide a line-by-line description of the search strategy, including the date of every search for each database, web browser, etc. ( IOM Standard 3.4.1) 12 :Image http://www.musingsone.com/2015/09/why-most-published-data-are-not.html 3 Researchers roles in a systematic review Librarians Develop a search strategy

Search databases Remove duplicates Send studies to researchers for review Write the Methods section of the manuscript Manage references and more

Researchers Synthesize the body of evidence 14 Image: Centre for Health Communication and Participation 4 Searvice providers & search interfaces Lets explore some examples 1. A single database may be offered through several providers/vendors 2. Each provider has its

own search interface e.g. MEDLINE via EBSCO and PubMed own search syntax TI cancer OR AB cancer (in EBSCO) cancer[Title/Abstract] (in PubMed) Image: http://convergentindia.com/service_provider.html 16 5 Structure of a search strategy

The search strategy is an organized structure of keywords used to search a database consists of main concepts being examined in the systematic review connected with the Boolean operators AND and OR Title of review should include these concepts, too. Image by Unsplash

18 Example of a search strategy (head and neck cancer OR head neck neoplasm OR head and neck cancer survivors OR oral cancer OR pharynx cancer OR larynx cancer OR nasopharynx cancer OR oropharynx cancer OR tongue cancer) AND (symptom burden OR physical symptom burden OR symptom experience OR nutrit* impact symptom* OR side effect* OR xerostomia OR dry mouth OR dysphagia OR difficulty swallowing OR trismus OR difficulty opening mouth OR sensitivity OR mastication OR difficulty chewing OR taste* OR taste changes OR taste dysfunction OR dysgeusia OR pain) AND (quality of life OR malnutrition OR cachexia OR weight loss OR sarcopenia OR weight OR food choice OR physical OR functional status OR nutritional concerns OR diet quality OR nutritional status) (Crowder et al., 2018) Whoa! Thats a long string but dont be scared! We will walk you through the steps on building it!

19 6 Search strategies & tools Words to consider 1. Controlled vocabulary and text words 2. Synonyms, related terms, variant spellings, truncation and wildcards 3. Boolean operators (AND, OR and NOT) Image by Unsplash 21 (head and neck cancer OR head neck neoplasm OR head and neck cancer survivors OR oral cancer OR pharynx

cancer OR larynx cancer OR OR oropharynx cancer OR tongue cancer) AND (nasopharynx cancersymptom burden OR physical symptom burden OR symptom experience OR nutrit* impact symptom* OR side effect* OR xerostomia OR dry mouth OR dysphagia OR difficulty swallowing OR trismus[MeSH] OR difficulty opening mouth OR sensitivity OR mastication OR difficulty chewing OR taste* OR taste changes OR taste dysfunction OR dysgeusia OR pain) AND (quality of life[MeSH] OR malnutrition OR cachexia OR weight loss[MeSH] OR sarcopenia[Title/Abstract] OR weight[Title/Abstract] OR food choice OR physical OR functional status OR nutritional concerns OR diet quality OR nutritional status) Controlled vocabulary and text words (Adapted from Crowder et al., 2018)

For more information, check Cochrane Handbook, Part 2, Chapter 6.4.5) 22 (head and neck cancer OR head neck neoplasm OR head and neck cancer survivors OR oral cancer OR pharynx cancer OR larynx cancer OR nasopharynx cancer OR oropharynx cancer OR tongue cancer) AND (symptom burden OR physical symptom burden OR symptom experience OR nutrit* impact symptom* OR side effect* OR xerostomia OR dry mouth OR dysphagia OR difficulty swallowing OR trismus[MeSH] OR difficulty opening mouth OR sensitivity OR mastication OR difficulty chewing OR taste* OR taste changes OR taste dysfunction OR dysgeusia OR pain) AND (quality of life[MeSH] OR malnutrition OR cachexia OR weight loss[MeSH] OR sarcopenia[Title/Abstract] OR weight[Title/Abstract] OR food choice OR physical OR functional status OR nutritional concerns OR diet quality OR nutritional status)

Synonyms, related terms, truncation[* ], wildcards (Adapted from Crowder et al., 2018) For more information, see Cochrane Handbook, (Part 2, Ch. 6.4.6) Things to also keep in mind: Variant spellings behavior, behaviour Wildcards wom?n for woman and women

23 (head and neck cancer OR head neck neoplasm OR head and neck cancer survivors OR oral cancer OR pharynx cancer OR larynx cancer OR nasopharynx cancer OR oropharynx cancer OR tongue cancer) AND (symptom burden OR physical symptom burden OR symptom experience OR nutrit* impact symptom* OR side effect* OR xerostomia OR dry mouth OR dysphagia OR difficulty swallowing OR trismus[MeSH] OR difficulty opening mouth OR sensitivity OR mastication OR difficulty chewing OR taste* OR taste changes OR taste dysfunction OR dysgeusia OR pain) AND (quality of life[MeSH] OR malnutrition OR cachexia OR weight loss[MeSH] OR sarcopenia[Title/Abstract] OR weight[Title/Abstract] OR food choice OR physical OR functional status OR nutritional concerns OR diet quality OR nutritional status) Boolean

operators (Adapted from Crowder et al., 2018) 24 7 Hands-on activity Lets draft a search strategy now! Lets put our brains to work! 1. Develop a research question using PICO form 2. Brainstorm keywords 3. Use benchmark articles 4. Explore subject thesaurus and controlled vocabulary terms (e.g. MeSH, Academic Search Ultimate) 5. Create concept strings for EBSCO 6. Record keeping system (Word, Excel, Notepad)

Image: https://www.innovativeos.com/collaborative-work-places-to-enhance-creativity/ 26 Other frameworks for research questions are available at http://lib.guides.umd.edu/SR/research_question 1. Develop a research question P Population Intervention I C Comparison

O Outcome 27 2. Brainstorm keywords P or Concept 1 OR AND I or Concept 2 OR AND

C or Concept 3 OR AND O or Concept 4 OR 28 3. Benchmark articles 29 3. Benchmark articles Abstract Scan for phrases, technical

terms and abbreviations used for your concepts Keywords Differentiate between author supplied keywords and controlled vocabulary You can use both in your search, but differently 30 Other sources for controlled vocabulary are available at http://lib.guides.umd.edu/SR/search_strategy 4. Explore subject thesaurus and controlled vocabulary terms (e.g. MeSH, Academic Search Ultimate) Both online thesauri and

database subject term indexes are good sources of controlled vocabulary 31 5. Create concept strings for an EBSCO database (e.g. Academic Search Ultimate) P index term OR synonym OR SU synonym OR TI synonym OR AB synonym I

index term OR synonym OR SU synonym OR TI synonym OR AB synonym C index term OR synonym OR SU synonym OR TI synonym OR AB synonym O index term OR synonym OR SU synonym OR TI synonym OR AB synonym 32 Search string P (index term OR synonym OR SU synonym OR TI synonym OR AB synonym) AND I

(index term OR synonym OR SU synonym OR TI synonym OR AB synonym) AND C (index term OR synonym OR SU synonym OR TI synonym OR AB synonym) AND O (index term OR synonym OR SU synonym OR TI synonym OR AB synonym) 33 Keep in mind vs. Figure 1 Figure 2

34 More resources on developing a search strategy: http://lib.guides.umd.edu/SR/search_strateg y 35 Inclusion & exclusion criteria Date Exposure of interest

Geographic location Language Participants Peer review Reported outcomes

Setting Study design Type of publication Template Image: https://www.slideshare.net/BrookWhitePMP/improving-inclusionexclusion-criteria-for-clinical-trials 36

Database selection: Why more than one? Overlap between two major (Gavel & Iselid, 2008 ) 37 Overlap between the citation databases and the medical databases (Gavel & Iselid, 2008 38 6. Record keeping system

MS Word MS Excel MS Notepad Templates available at http://lib.guides.umd.edu/SR/steps (on the left side column) 39 8 If you still need help after the workshop you can contact us at [email protected]

1 G In en pr a re ov on er vi id e ew e h al a o pr b ur co o c a s in es ic -p n s. ov ers

su er o vi n c lt ew o in ns of u g l th ta e ti o sy n st , w em e at wi C ic ll re

W a e c ck di an rea off th d/ tin er n tg e or g a s ow i re r se si v se ev a st le en ar ie rch an w ce ch i d

er ng str in g as i . n se g g em e s ar ch for ner en st sp ati rin e ng t gs cifi ke cr c d y t ea at e te ab rm

d as s, C by e s, r W e a se e d d u s a e t h it th tud rch ve l i or gi i o

e se e n p ar res s a g i th sh ve ch e n d n v e a m rc p ar se ip n et he re io ar as u p c ho r a s h do an re da st

co lo d w th ta ra gy r em b te a i g . te s y an for es, , e y sc m xe po re an cu rt en ag te io in e t n g t he of b h e th y e Our tiered

SR service 2 For more information: http://lib.guides.umd.edu/SR/help 3 41 References & Credits Cook, D. J., Mulrow, C. D., & Haynes, R. B. (1997). Systematic reviews: Synthesis of best evidence for clinical decisions. Annals of Internal Medicine, 126(5), 376380.

Gavel, Y., & Iselid, L. (2008). Web of Science and Scopus: a journal title overlap study. Online information review, 32(1), 8-21. Porta, M. S. (Ed.). (2008). A dictionary of epidemiology. (5th ed.). Oxford ; Oxford University Press. Special thanks to all the people who made and released these awesome resources for free: Slides content based on materials from workshop Designing Search Strategies for Systematic Reviews from the Bernard Becker Medical Library, Washington University, St. Louis

Presentation template by SlidesCarnival 42 Thanks ! Any questions? You can find us at [email protected] 43

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