Searching for Controlled Trials of Complementary and Alternative Medicine: A Comparison of 15 Databases
Open Access
- 1 January 2011
- journal article
- research article
- Published by Hindawi Limited in Evidence-Based Complementary and Alternative Medicine
- Vol. 2011 (4), 1-9
- https://doi.org/10.1093/ecam/nep038
Abstract
This project aims to assess the utility of bibliographic databases beyond the three major ones (MEDLINE, EMBASE and Cochrane CENTRAL) for finding controlled trials of complementary and alternative medicine (CAM). Fifteen databases were searched to identify controlled clinical trials (CCTs) of CAM not also indexed in MEDLINE. Searches were conducted in May 2006 using the revised Cochrane highly sensitive search strategy (HSSS) and the PubMed CAM Subset. Yield of CAM trials per 100 records was determined, and databases were compared over a standardized period (2005). The Acudoc2 RCT, Acubriefs, Index to Chiropractic Literature (ICL) and Hom-Inform databases had the highest concentrations of non-MEDLINE records, with more than 100 non-MEDLINE records per 500. Other productive databases had ratios between 500 and 1500 records to 100 non-MEDLINE records—these were AMED, MANTIS, PsycINFO, CINAHL, Global Health and Alt HealthWatch. Five databases were found to be unproductive: AGRICOLA, CAIRSS, Datadiwan, Herb Research Foundation and IBIDS. Acudoc2 RCT yielded 100 CAM trials in the most recent 100 records screened. Acubriefs, AMED, Hom-Inform, MANTIS, PsycINFO and CINAHL had more than 25 CAM trials per 100 records screened. Global Health, ICL and Alt HealthWatch were below 25 in yield. There were 255 non-MEDLINE trials from eight databases in 2005, with only 10% indexed in more than one database. Yield varied greatly between databases; the most productive databases from both sampling methods were Acubriefs, Acudoc2 RCT, AMED and CINAHL. Low overlap between databases indicates comprehensive CAM literature searches will require multiple databases.Keywords
Funding Information
- University of Ottawa
This publication has 26 references indexed in Scilit:
- Searching for CAM Evidence: An Evaluation of Therapy-Specific Search StrategiesThe Journal of Alternative and Complementary Medicine, 2007
- Developing CAM Research Capacity for Complementary MedicineEvidence-Based Complementary and Alternative Medicine, 2006
- Cochrane Systematic Reviews in Acupuncture: Methodological Diversity in Database SearchingThe Journal of Alternative and Complementary Medicine, 2005
- Complementary and Alternative Medicine in the Scientific LiteratureThe Journal of Alternative and Complementary Medicine, 2005
- Exploring the Evidence: The Challenges of Searching for Research on AcupunctureThe Journal of Alternative and Complementary Medicine, 2004
- How objective are systematic reviews? Differences between reviews on complementary medicineJournal of the Royal Society of Medicine, 2003
- Publication of Complementary and Alternative Medicine Research in Mainstream Biomedical JournalsThe Journal of Alternative and Complementary Medicine, 2001
- Bibliometric analysis of randomized trials in complementary medicineComplementary Therapies in Medicine, 1998
- A bibliometric study of English-language materials on acupunctureComplementary Therapies in Medicine, 1996
- The comprehensiveness of Medline and Embase computer searchesInternational Journal of Clinical Pharmacy, 1992