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Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet Library Stockholm, Sweden [email protected]
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Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

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Page 1: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Criteria for quality assessment of medical information resources

EAHIL WorkshopAlghero

June 7 - 9, 2001

Marie MonikChristine WickmanKarolinska Institutet Library Stockholm, [email protected]

Page 2: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

Information literacy

• To analyze information needs• To know about different information

resources and how to access them • To evaluate the information retrieved

How is the information provided?

– oral information - personal contacts– printed material– online / CD-ROM / Internet

Page 3: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

Criteria for evaluation of information resources

• Accuracy• Authority• Objectivity• Currency• Coverage

Page 4: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

Printed information

• Easy to transmit • Independent of personal contacts• Detailed - method descriptions, diagrams,

tables

• Evaluable• Citeable• Archivable and retrievable• Academic credit

Page 5: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

Scientific articlesPeer reviewed journals

• Following a specific structure– makes it easy to orientate– instructions to authors

• Peer reviewed journals– guarantees validity– important to publish in the ”right” journal

• Accessibility – selected for indexing in databases like

Medline, Embase, SCI

Page 6: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

Journals indexed for Medline

• Journals selected by NLMLSTRC - Literature Selection Technical

Review Committee Scope and coverage

quality of content quality of editorial work production quality audience

• About 15-20% of suggested journals will be accepted

Page 7: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

Journals covered by SCIImpact factors

• Multidisciplinary database• Journals selected by ISI (Institute for

Scientific Information)

• Impact factors calculated

• Available in JCR (Journal Citation Reports)

• Journals sorted by impact factors – in alphabetic order– within different subject categories

Page 8: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

Databases

• Subject area• International vs national databases • What kind of material is covered?

– printed material - journals mostly - reviewed by publishers and referees

• Database producer’s/ host’s name, reputation, size, experience, customers

• CD-ROM / Online / Web interfaces

Page 9: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

Searching databases

• Need for information has to be translated into search terms

• More cost-effective literature search with ”correct” terminology

• Evaluation of the search result– to be applied in clinical practice– to be included in the decision making

process

Page 10: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

To choose search terms

• Standardised terms (MeSH, Emtree)• ”free text”-terms• Advantages/disadvantages

• PubMed vs Medline via Ovid, DataStar, Silverplatter, Dialog, …..

Page 11: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

Medline

• MeSH-terms– Case control studies– Cohort studies– Risk– Odds ratio– Sensitivity and specificity– Prognosis– Recurrence– Survival analysis– Meta-analysis

Page 12: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

Medline

• Publication types– Clinical trial– Randomized controlled trial– Multicenter study– Meta-analysis– Controlled clinical trial

• Very useful for limitation issues

Page 13: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

Example: Drug therapy

• Interested in a group of drugs (serotonin agonists) or in a specific drug (Sumatriptan)?

• Which diagnosis? (migraine)• Dosage, route of administration?• Type of study/clinical trial?• Which terms?• Which databases?

Page 14: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

Cochrane Library

• Cochrane Collaboration founded in 1993– Collaborative Review Groups– Method Groups

• To help clinicians to find evidence– Systematic Reviews in full-text (using Meta-

analysis)– Clinical Trial Register– Health Care Technology Assessment

Page 15: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

Cochrane Library

• MeSH for searching– supplementary headings

• ”free text” in full-text and references– includes MeSH, EMTREE and other

standardised terms used by other database producers

Page 16: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

The Web

• Usage of the Web has changed

Surfing

Searching more effectively for knowledge

and evidence

Page 17: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

Criteria for quality assessment of information resources on the

Web

• How current is the information?• Who is the producer?• Who is the information aimed at?• Links to/from the information?• Look at the lay-out, language, colors …

– the first impression is very important

Page 18: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

URL - Uniform Resource Locator

• What about the URL of the web site?----.com, ----.gov, ----.edu, ----.mil, ----.net----.se, ----.de, ----.uk

• How did you find the resource?– via an established web site– via a search catalog like Yahoo– via search engines like Google, AltaVista,

HotBot,

Page 19: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

Something to think of… Something to teach our users ...

• Analyse the search request and the need for a specific type of document – use standardized terms, offered ways of

limitation

• Search several information resources• Use your knowledge and experience - be

critical• The Web is not ”everything”

Page 20: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

Professional responsibility

• Responsibility of database producers, hosts, portal builders, publishers– user-friendly effective search programs– to improve access probabilities– to offer better quality – information on the source

Page 21: Criteria for quality assessment of medical information resources EAHIL Workshop Alghero June 7 - 9, 2001 Marie Monik Christine Wickman Karolinska Institutet.

Christine Wickman, Marie Monik KIB

Professional responsibility

• Responsibility of libraries and information specialists– to teach end-users

• how to make better searches• where to find what they are looking for

– to build gateways to information within specific subject areas

Our competence is needed!