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Table 1 Description of databases searched (n = 38)

From: The COMET Handbook: version 1.0

Number of databases

n

Databases searched

1

18

Medline (n = 9)

PubMed (n = 7)

Central Register of Controlled Trials (n = 2)

2

8

Medline and Embase (n = 4)

PubMed and Central Register of Controlled Trials (n = 1)

Medline and CancerLit (n = 1)

Medline and Central Register of Controlled Trials (n = 1)

Medline and PubMed (n = 1)

3

4

Medline, CINAHL and Embase (n = 2)

Medline, Embase and Cochrane Central Register of Controlled Trials (n = 1)

PubMed, CINAHL, PsychINFO (n = 1)

4

1

PubMed, Medline, Embase and the Cochrane Collaboration

5

3

Medline, PreMedline, CancerLit, PubMed (National Library of Medicine) and Cochrane Library (n = 1)

Medline, Embase, PsycINFO, Cochrane Library and CINAHL (n = 1)

Cochrane Wounds Group Specialised Register, The Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library), Medline, Embase and CINAHL (n = 1)

6

0

 

7

2

Cochrane Oral Health Group’s Trials Register (CENTRAL),

Medline, Embase, Science Citation Index Expanded, Social

Science Citation Index, Index to Scientific and Technical

Proceedings, System for Information on Grey Literature in

Europe (n = 1)

Cochrane Skin Group Specialised Register, the Cochrane Central Register of Controlled Trials in The Cochrane Library (Issue 4, 2009), Medline, Embase, AMED, PsycINFO, LILACS (n = 1)

8

2

CINAHL (Cumulative Index to Nursing and

Allied Health Literature), Embase, Medline,

National Criminal Justice Reference Service

(NCJRS), PsycINFO, Sociological Abstracts, The Cochrane Database, The Patient-reported Health Instruments

(PHI) website (n = 1)

Medline, PubMed, Embase, PsycINFO, CINAHL, Web of Sciences, Cochrane Central Register of Controlled Trials, and Cochrane Database of Systematic Reviews (n = 1)