Workshop Systematic Reviews Werkgroep Sociaal Wetenschappelijke Informatie

transcript

Systematic Searching in OsloWorkshop

Janneke Staaks

February 26, 2015

Universiteitsbibliotheek

Janneke Staaks

j.staaks@uva.nl

@jstaaks

Specialist Wetenschappelijke Informatie

Psychology

Child Development and Education

Anthropology

Formulate search question

Systematic searching in databases

Inclusion / exclusion criteria

Critical appraisal (validity / relevance)

Analysing data

Search Technique

https://www.flickr.com/photos/sherlock77/416909735

snake phobia.ti,ab,id. 114

snake fear.ti,ab,id. 58

Ophidiophobia/ 300

1 OR 2 OR 3 381

Syntax

Find new words:

Ophidiophobia/ NOT (snake phobi* OR

snake fear* OR ophidiophobi*).ti,ab,id.

100 results

Controlled vocabulary

Subject headings, Mesh terms, Thesaurus etc.

Ophidiophobia/

Free text terms

title, abstract etc. (may vary across databases)

snake fear.ti,ab,id.

*, ? en #

fear* ADJ3 speak*

speaking fears

fearful of speaking

fear of public speaking

public speaking fear

speaker’s subjective fear

Wildcards

*, ? en #

fear* ADJ2 speak*

speaking fears

fearful of speaking

fear of public speaking

public speaking fear

speaker’s subjective fear

Wildcards

((("semi-structured" OR semistructured OR

unstructured or informal OR "in-depth" OR

indepth OR "face-to-face" OR structured OR

guide OR guides) ADJ3 (interview* OR

discussion* OR questionnaire*)).ti,ab,id. OR

(focus group* OR qualitative OR ethnograph*

OR fieldwork OR "field work" OR "key

informant")).ti,ab,id. OR exp qualitative

research/ OR exp interviews/ OR exp group

discussion/ OR qualitative study.md. NOT

“literature review".md.

Research Question

Development of children from mothers with

epilepsy (anti-epileptics during pregnancy)

PICO(S)

Population

Intervention

Comparison

Outcome

(Study)

What is the effect of taking antiepileptics while

pregnant on the development of the child?

Population: Pregnant women with epilepsy

Intervention: anti-epileptics

Comparison: none

Outcome: development of child

Study: cohort studies and observational

research

Key concepts

#1 Pregnancy outcomes

#2 Anti-epileptics

#3 Development of a child

#4 Cohort Studies and observational research

Does it matter?

Pregnancy outcomes

Anti-epileptics

Pregnancy

Epilepsy

Development

Does it matter?

Pregnancy outcomes

Anti-epileptics

3.636 results 6.709 results

Pregnancy

Epilepsy

Development

Reference set

Pregnancy outcomes

Anti-epileptics

3.636 results 6.709 results

Pregnancy

Epilepsy

Development

Be practical

Plus domain (diagnosis, prognosis, therapy)

Dependent plus independent variables

X causes Y

X is correlated with Y

Plus population

Methodology 17

Search Strategy

Setting – Where? In what context?

Perspective – For who?

Phenomenon of Interest – What?

Comparison – what else?

Evaluation – How well? What result?

Example

Setting – Community health services

Perspective – Caregivers of people with

dementia

Phenomenon of Interest – Reminiscence

therapy

Comparison – none

Evaluation – attitudes, coping skills

Source: http://esquiresheffield.pbworks.com/f/Focusing.pdf

Reporting a search

Reported number of results: 1.527 results

Just ‘normal’ search terms: 18.564 results

Just Subject Headings: 1.112 results

Reproducibility

Reporting Combinations

https://www.flickr.com/photos/lst1984/902028093/sizes/l/

Database selectie (slide 29)

Vertaling van zoekopdracht naar andere

systemen (slide 33)

Zoektermen genereren (slide 35)

Reporting guidelines (slide 36)

Aanvullende zoekstrategieen (slide 40)

File drawer probleem (slide 41)

Ontdubbelen (slide 42)28

Menukaart

https://www.flickr.com/photos/lst1984/902028093/sizes/l/

Medline vs Pubmed

Embase

Number of databases

The usual suspects, plus..

specialistic database(s)

Citation tracking => Web of

Science/Scopus/Google Scholar

Be practical

Database selection

Size and coverage

Years of coverage,

languages

Database usability

Field search, special search syntax, subject headings,

number of titles that you can export to reference manager

software, etc.

Database sustainability

Bibliographies > catalogues (including discovery services)30

Database selection

http://www.flickr.com/photos/booleansplit/3813998921

5,000,000

10,000,000

15,000,000

20,000,000

25,000,000

ERIC CINAHL PsycINFO Embase Medline

Databases

Medline 530 titles

PsycINFO 238 titles

Cinahl 108 titles

Cochrane 24 titles

Embase 958 titles

Parenting Stress of Parents with children with Epilepsy

Retrieved May 24, 2012 with A. Ridderinkhof

EMBASE

Medline

OvidSP

Proquest

Pubmed

Other Publishers

Ophidiophobia/ OR snake fear.ti,ab.

(MH "Ophidiophobia") OR TI "snake fear"

OR AB "snake fear"

SU.EXACT("Ophidiophobia") OR

TI ("snake fear") OR AB ("snake fear")

Ophidiophobia[mh] OR "snake fear"[tiab]

PsycINFO

Medline

Other databases

Ophidiophobia/ OR snake fear.ti,ab,id.

Phobic disorders/ OR snake fear.ti,ab.

Search Terms

General - specific

ethnic minority or Asian

physiological measures or cortisol

Synonyms and related terms

social phobia or social anxiety or blushing

Acronyms

Major Depressive Disorder or MDD

Search terms

Spelling

US – UK: behavior or behaviour

Single - plural: child or children

Verb tenses: cry, crying or cried etc

Opposites

fertility or infertility

Historical language

Changes in DSM

Search terms

• PRISMA statement: Preferred Reporting Items for

Systematic reviews and Meta-Analysis

• MARS: Meta-Analysis Reporting Standards from

the 6th edition of the APA manual

• MEC2IR reporting standards from the Campbell

Collaboration

• MOOSE (Meta-Analysis and Systematic Reviews

of Observational Studies in Epidemiology)

See the EQUATOR network for more standards38

Reporting Guidelines

http://www.flickr.com/photos/performancesolutions/7251161908/

• PRISMA statement• Preferred Reporting Items for Systematic reviews

and Meta-Analysis

PRISMA

Complementary Search Strategies

Citation tracking

Web of Science and Google Scholar (cited by..)

Systematic reviews and meta-analyses

Authors

Hand searching

Journals

Conference proceedings

Consulting experts

File drawer problem

Statistics

Unpublished research

Contacting authors

Clinicaltrials.gov

International Clinical Trials Registry Platform (ICTRP) from

the World Health Organization (WHO)

Grey literature

Dissertations

Conference Proceedings

https://www.flickr.com/photos/rdennis/11948643

Reference Manager Software

RefworksReference Manager

Endnote

Reference manager software and

systematic reviews

Step 1: Export all references into folders

One folder per database

Most databases have a limit (500 titles per export)

Step 2: Copy the content into one folder

Step 3: Deduplicate

Let the software make a selection..

..but check the duplicates yourself!

Use sort and compare page numbers

And then..

Assessment options

Cochrane handbook: “should be done by at least two

people, independently”

Export to excel

Remove Author name and/or Journal title

Work with folders or keywords to keep track of your

progress

Bijscholing

Afdeling Biomedische

Informatie (BMI)

Werkgroep CBN http://www.bmi-online.nl/cbn/

Belgie Campbell Groep

http://www.campbell-

collaboration.be/Belgian_Campbell_collaboration/Welcome.

https://www.flickr.com/photos/doug88888/6486005213

More information

Cochrane handbook

http://handbook.cochrane.org/

Centre for Reviews and Dissemination (York)

Database (critical assessment)

Guidance (Book: Systematic Reviews: CRD's guidance for

undertaking systematic reviews in health care)

Campbell collaboration

Prisma Statement

www.prisma-statement.org

More information

Search filters

Cochrane Collaboration Depression, Anxiety and Neurosis

Review Group (CCDAN)

Cochrane or Campbell Library

Search filters – study design or focus

Scottish Intercollegiate Guidelines Network (SIGN)

InterTASC Information Specialists' Sub-Group Search Filter

Resource