Transcript Library services at UH Bristol

Literature Searching
Searching the Evidence Base
Tom Osborne, Librarian
Plan of Session
 Introduction to the Library
 OpenAthens registration
 Formulating a search
 Developing a search strategy
 Searching the databases
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Evidence Based Medicine
https://www.youtube.com/watch?v=F2a3o1-FuvY
True or False?
- Attaching a toad to your throat was a treatment for
internal bleeding?
- For baldness smear the head with juice of a beetle?
- Statins help prevent heart disease?
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Introduction to the Library
 Where we are?...What we offer…
 Access via the library pages on CONNECT
http://connect/Pages/default.aspx OR via our
website: http://www.uhbristol.nhs.uk/forclinicians/library-and-information-service
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OpenAthens Registration
For access to all online resources you will need to register for
an NHS OpenAthens username/password
https://openathens.nice.org.uk/
You must register using a Trust PC
and your Trust email address
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Formulating a Search
Take a look at the abstracts provided and highlight key terms
you might use for searching.
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Search Strategy
“Is CPAP the best way to manage
paediatric patients with bronchiolitis?
Are there any randomised controlled
trials to support this?”
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The PICO Approach
How can we transfer the results into a searchable structure?
Patient or
Population
Intervention
or Exposure
Comparisons
WHO?
WHAT?
is the treatment
or procedure
being delivered
to?
is the treatment
or procedure
being delivered?
HOW MUCH
BETTER?
is this procedure
than another?
or
or
(if required)
WHAT?
is the condition
or problem?
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Outcomes
HOW?
is the effect of
the intervention
or exposure
measured?
WHAT?
WHAT?
is happening to
the patient or
population?
BETTER THAN
WHAT?
what alternatives
are there?
can be achieved?
“Is CPAP the best way to manage paediatric patients with
bronchiolitis? Are there any randomised controlled trials to
support this?”
Patient or
Population
Intervention
or Exposure
WHO?
WHAT?
WHAT?
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Comparisons
(if required)
Outcomes
Searching the evidence
 Where do you currently find your evidence?
 The NHS subscribes to eight healthcare databases
 Access via NHS Evidence
https://www.evidence.nhs.uk/
Database Tips
AND
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Use AND in a search to:
•narrow your results
•tell the database that ALL search terms must be
present in the resulting records
•example: cloning AND humans AND ethics
The purple triangle in the middle of the Venn
diagram below represents the result set for this
search. It is a small set using AND, the
combination of all three search words.
OR
Use OR in a search to:
connect two or more similar concepts (synonyms)
broaden your results, telling the database that ANY
of your search terms can be present in the resulting
records
example: cloning OR genetics OR reproduction
All three circles represent the result set for this
search. It is a big set because any of those words
are valid using the OR operator
More Database Tips
 Truncat* & “Bool* Operat*” - *, ADJ2, ?, “”,
 Search ALL options but BE SPECIFIC
 Limit by Date
 Remove Duplicates
 Sort Results
 View Abstracts - Appraise
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Find the Article!
What year was it published?
How can you tell if it’s any good?
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Library outreach service
The library
Level 5, Education Centre
Upper Maudlin St
Tel. ext. 20105
Email. [email protected]
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