2. Today’s learning objectives
Understand the need for searching skills for systematic reviews and key
search tools
Perform a sophisticated search in Embase (Ovid)
Review search strategy and edit to improve results
Filter, save and export results
Managing your results and finding the articles
Document the search process
4. What is a systematic review ?
A systematic review attempts to identify, appraise and synthesize all
the empirical evidence that meets pre-specified eligibility criteria to
answer a specific research question.
Cochrane handbook
St George’s Library http://library.sgul.ac.uk
5. 8 stages of a systematic review
1. Formulating a review question
2. Defining inclusion and exclusion criteria
3. Locating studies through searching
4. Selecting studies for inclusion
5. Assessing the quality of studies
6. Extracting data
7. Analyzing and synthesizing the relevant studies
8. Presenting and interpreting results
Focus for today
6. Which database when?
Medicine: Medline, Embase, Cochrane Library (Systematic reviews & trials data)
Psychiatry: PsycINFO
Nursing/Allied Health: CINAHL, British Nursing Index,EMCARE
Management: HMIC (Healthcare Management Information Consortium)
Multidisciplinary: WOS (Web of Science)
Visit www.library.sgul.ac.uk and click ‘Databases A-Z’
7. Other sources
Google scholar and other
targeted web searches
Handsearching journals
and reference lists
Contacting experts
Trials databases
http://bit.ly/2xLi8T8
Grey literature
Conference proceedings
Dissertations and theses
http://ethos.bl.uk
9. Focus your question
I’m looking for information on diabetes- in particular education…
Is patient education effective in improving blood sugar control in
teenage diabetics?
10. Is patient education effective in improving blood
sugar control in teenage diabetics?
Keywords for this search
1. Patient
Education
2. Blood sugar
3. Teenage
diabetics
11. Planning with PICO (S)
P Population, problem e.g. Teenage diabetics
I Intervention e.g. Patient education
C Comparison e.g no comparison
O Outcome(s) e.g. Improved blood sugar levels
S Study type e.g. Qualitative studies
12. Alternatives to PICO(S)
Spider – Sample, Phenomena of Interest, Design, Evaluation, Research
Pestel - Political, Economic, Social, Technological, Environmental and
Legal Factors
Spice – Setting, Population, Intervention, Comparison, Evaluation
Eclips [management and service related issues] – Expectations, Client
Group, Location, Impact, Professionals Involved, Service
13. Activity
1.Think of your own focused question and write it down
(use PICO(S) if it helps)
2. Underline your keywords (2 or 3) from your question or
post them in the chat to share with others
15. Is patient education effective in improving blood
sugar control in teenage diabetics?
Keywords for this search
1. Patient
Education
2. Blood sugar
3. Teenage
diabetics
16. Synonyms or alternative words
P Teenage, teenagers, adolescents
I Patient education, patient information, health
education
C No comparison
O Blood sugar, blood glucose, hypoglycemia,
hypoglycaemia, hyperglycemia, hyperglycaemia,
S Qualitative studies
17. Activity
1. Thinking of your own topic, could you identify alternative
keywords or phrases for each of your concepts? Share
some examples in the chat
2.If you are unsure, use our alternative keyword worked
example as a guide – linked in the chat
18. Step 3
Apply search techniques to your plan:
1. Truncation & Wildcards
2. Boolean searching- ANDs and ORs
3. Brackets
4.Proximity searching
5. Field searching
6. Subject heading searching
19. Search Techniques 1- Truncation and Wildcards
Truncation
Apply an * to word stems...so you don’t miss any relevant article*
adolescen* = adolescence or adolescent or adolescents
Wildcards
Replace zero or 1 characters with a ?
wom?n = woman or women
Tip! Check your
database provider’s
help pages for correct
characters
20. Search Techniques 2- Boolean ANDs and ORs
OR is More:
teenager* OR adolescent*
AND narrows and reduces your search:
“blood glucose level*” AND adolescent*
Tip! OR combines
similar terms
AND combines
your different
elements of your
search
21. Search Techniques 3- Brackets
Use brackets to group together (similar or alternative) words or
phrases
(teenager* or adolescent*) and (blood sugar or blood glucose or
diabet*)
22. Search Techniques 4- Proximity searching 1
“Phrase searching”
In some databases, enclose phrases in “speech marks” to find that
“particular phrase”
This will focus the number of results you get
“blood glucose” or “blood sugar”
23. Search Techniques 4- Proximity searching 2
Proximity or Adjacency
a clever adj3 (trick or skill)
adolescen* adj3 diabe*
Will locate adolescent (and its variants) within 2 words of diabetes
(and its variants)
Tip! Database
provider
specific
Adj(n)- Ovid
N(n)- Ebsco
24. Search Techniques 5- Field searching
You can specify where the database looks for your terms
• Abstract
• Title
• Title or abstract
• Any field
Tip! Check database
provider for any
field label
identifiers, eg, in
Ovid, field*.tw.
means look in the
titles and abstracts
for term field and its
variants
25. Activity Break
Apply the truncation and Boolean techniques to
keywords in your own search plan
Truncation = * to search on word stems
OR = More, alternative terms
AND = Combines different concepts together
The search planning templates on the LibGuide
might help
26. Demo and hands on
Watch me demo my
PICOS plan in Ovid
Embase.
Try your own search for 10
minutes then come back.
Ask any questions in the
chat
27. Subject heading searching
Standardised terms
Assigned by expert indexers (not always)
Allows exploration of associated
(broader, narrower and related) terms in subject tree
Can help your search and avoid problems inherent in free text
Combine your keywords and subject headings for each of your terms with OR
Tip! A
systematic
search will use
subject headings
as well as
keywords for
each term
28. Demo and hands on
Watch me demo finding
and adding subject
headings in Ovid Embase
to my search strategy
Try your own search for 10
minutes then come back.
Ask any questions in the
chat
29. Activity Break
Try and find subject headings for at least one of
your search terms and add to your search with
appropriate Boolean (OR)
Does use of subject headings increase the
amounts of results you get?
30. Demo and hands on
Watch me demo
combining my final
keyword and subject
heading searches together
with AND
Try doing the same to your
own search
Ask any questions in the
chat
35. Saving results & strategies & managing results
Create personal account to save strategies to log & rerun
searches
Use database functions to save and download records
Records can be downloaded to citation management software
Save down search strategies to document the search- PRISMA
Flow Diagram
37. Finding papers & getting more help
SGUL Journals- Hunter or Journals A-Z
NHS Ejournals A-Z
OpenAccess journals
Document supply services
https://libguides.sgul.ac.uk/sysreviews
liaison@sgul.ac.uk
Editor's Notes
Systematic reviews seek to collate evidence that fits pre-specified eligibility criteria. They aim to minimise bias by using explicit, systematic methfs documented in advance with a protocol. Cochrahne prepares maintains promotes srs to inform dedcisons about healthcare
ia
Demo databases page, poll
To recap we have decide that the first
Authors describe the same concept in different ways eg alcohol abuse OR heavy drinking or alcoholism, so it’s important to make a list of all the potential ways to describe a concept. Consider broader or narrower terms, synonyms, US vs UK spelling
To recap we have decide that the first
These alternative terms will be combined together with OR
One you have gathered a list of keywords and alternative keywords, build your search up using a variety of techniques