Systematic Searching
-
Upload
kieran-lamb -
Category
Health & Medicine
-
view
444 -
download
3
Transcript of Systematic Searching
Systematic Searching
Kieran LambHead of Library Services
Fade Library, Liverpool PCT
• OR, AND, NOT• PICO and ECLIPS tools to make
designing a search strategy easy• Natural Language and Controlled
Vocabularies explained• Where to Search?
Outline
OR
OR – expands a search by creating an either or situation
FISH OR CHIPS
RetrievesFISH
CHIPS
FISH AND CHIPS
AND – limits a search by creating an situation where all elements must be present
FISH AND CHIPS
RetrievesFISH AND CHIPS
AND
NOT – limits a search by creating an situation by excluding records
CHIPS NOT FISH
RetrievesCHIPS
NOT
PICO
P – patient or population
I – Intervention
C – Comparison
O – Outcome
Within columns OR between columns AND
ECLIPS
E – Expectation
C – Client Group
L – Location
I – ImpactP – Profesionals involved
S – Service
Within columns OR between columns AND
1. Controlled Vocabularies use preferred terms to describe concepts e.g. the MESH preferred term for PRIMARY CARE is PRIMARY HEALTH CARE
2. Natural language searches search for the term exactly as you type it and is author dependent.
Systematic searches will use both natural language and controlled vocabularies in their strategy
Natural Language and Controlled Vobaularies
Natural Language v Controlled Vobaularies
Natural LanguageSearches for exactly the term you type
Controlled VocabularySearches for preferred key terms
+ simple and natural
+ precise way of searching (superficially)
+ keeps up-to-date with new developments
- Soft use of languages means synonyms predominate
+ ensures maximum retrieval
+ precisely defined and consitent
+ hierarchy enhances search
+ brownie points for assignments!
- time lag in adoption of new concepts
- need to be consistently applied
- native to each product
Databases to Search
NHS Evidence – Synthesised evidence and materials from NHS Evidence Specialist Collections (Evidence based materials)Cochrane Library - CDR, HTA, DARE, NHSeed, Methodology Register, Controlled Trials Register (Evidence based materials)AMED (Complementary medicine and allied health)BNI (Nursing)CINAHL (Nursing and allied health)Embase (Clinical medicine and pharmacology)HMIC (Policy and management)Medline (Clinical medicine, Allied Health, Nursing, Vet Science)PsycINFO (Psychology and mental health)Best Bets (Evidence based materials) Trip Database (Evidence based materials)
Further ?s
Time to Search