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Find Duplicates among the PubMed, EMBASE, and Cochrane Library Databases in Systematic Review
- Source :
- PLoS ONE, Vol 8, Iss 8, p e71838 (2013), PLoS ONE
- Publication Year :
- 2013
- Publisher :
- Public Library of Science (PLoS), 2013.
-
Abstract
- BACKGROUND: Finding duplicates is an important phase of systematic review. However, no consensus regarding the methods to find duplicates has been provided. This study aims to describe a pragmatic strategy of combining auto- and hand-searching duplicates in systematic review and to evaluate the prevalence and characteristics of duplicates. METHODS AND FINDINGS: Literatures regarding portal vein thrombosis (PVT) and Budd-Chiari syndrome (BCS) were searched by the PubMed, EMBASE, and Cochrane library databases. Duplicates included one index paper and one or more redundant papers. They were divided into type-I (duplicates among different databases) and type-II (duplicate publications in different journals/issues) duplicates. For type-I duplicates, reference items were further compared between index and redundant papers. Of 10936 papers regarding PVT, 2399 and 1307 were identified as auto- and hand-searched duplicates, respectively. The prevalence of auto- and hand-searched redundant papers was 11.0% (1201/10936) and 6.1% (665/10936), respectively. They included 3431 type-I and 275 type-II duplicates. Of 11403 papers regarding BCS, 3275 and 2064 were identified as auto- and hand-searched duplicates, respectively. The prevalence of auto- and hand-searched redundant papers was 14.4% (1640/11403) and 9.1% (1039/11403), respectively. They included 5053 type-I and 286 type-II duplicates. Most of type-I duplicates were identified by auto-searching method (69.5%, 2385/3431 in PVT literatures; 64.6%, 3263/5053 in BCS literatures). Nearly all type-II duplicates were identified by hand-searching method (94.9%, 261/275 in PVT literatures; 95.8%, 274/286 in BCS literatures). Compared with those identified by auto-searching method, type-I duplicates identified by hand-searching method had a significantly higher prevalence of wrong items (47/2385 versus 498/1046, p
- Subjects :
- PubMed
Systematic Reviews
Non-Clinical Medicine
Clinical Research Design
Epidemiology
MEDLINE
Portal vein
Information Storage and Retrieval
lcsh:Medicine
Review Literature as Topic
Budd-Chiari Syndrome
Biostatistics
Cochrane Library
Social and Behavioral Sciences
computer.software_genre
Databases
Humans
Medicine
Clinical Epidemiology
Statistical Methods
lcsh:Science
Information Science
Evidence-Based Medicine
Multidisciplinary
Database
Portal Vein
business.industry
Statistics
lcsh:R
Thrombosis
Qualitative Studies
Duplicate Publications as Topic
Survey Methods
Systematic review
Medical Education
Computer Science
Ultrasound imaging
Reporting Guidelines
lcsh:Q
Scientific publishing
Information Technology
business
computer
Mathematics
Research Article
Subjects
Details
- ISSN :
- 19326203
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- PLoS ONE
- Accession number :
- edsair.doi.dedup.....f450e16254e191b991a5f1fb6a32427d