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Evaluation & the Health Professions
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The Contribution of Handsearching European General Health Care Journals to the Cochrane Controlled Trials Register

Steve McDonald

Carol Lefebvre

U.K. Cochrane Centre

Gerd Antes

Daniel Galandi

Deutsches Cochrane Zentrum

Peter Gøtzsche

Cecilia Hammarquist

Nordic Cochrane Centre

Margaret Haugh

Centre Cochrane Français

Kirsten Lone Jensen

Nordic Cochrane Centre

Jos Kleijnen

Marjan Loep

Dutch Cochrane Centre

Vanna Pistotti

Centro Cochrane Italiano

Alric Rüther

Deutsches Cochrane Zentrum

A fundamental aim of any systematic review is that all relevant studies should be identified and considered for inclusion. Limitations with searching bibliographic databases led the Cochrane Collaboration to search journals by hand for reports of trials. This article presents the results of a 3-year project to identify and make accessible reports of randomized trials published in European general health care journals. Overall, 21,620 reports of controlled trials were identified from119 journals from16 countries. More than three quarters (76%) were published in U.K. or German journals. Only 3,640 (17%) reports were indexed in MEDLINE as controlled trials, and 6,554 (30%) were not indexed in MEDLINE at all. Bibliographic details for all reports are available by searching The Cochrane Controlled Trials Register in The Cochrane Library. This project has ensured that a large proportion of trial reports not previously identifiable has been made accessible to those preparing systematic reviews.

Evaluation & the Health Professions, Vol. 25, No. 1, 65-75 (2002)
DOI: 10.1177/0163278702025001005
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