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Document type:
journal article 
Author(s):
MacPherson, Hugh; Vertosick, Emily; Lewith, George; Linde, Klaus; Sherman, Karen J; Witt, Claudia M; Vickers, Andrew J; Acupuncture Trialists' Collaboration; Allen, Claire; Beckner, Mac; Berman, Brian; Brinkhaus, Benno; Coeytaux, Remy; Cronin, Angel M; Diener, Hans-Christoph; Endres, Heinz G; Foster, Nadine; de Hoyos, Juan Antonio Guerra; Haake, Michael; Hammerschlag, Richard; Irnich, Dominik; Jonas, Wayne B; Kronfeld, Kai; Lao, Lixing; Lewith, George; Linde, Klaus; MacPherson, Hugh; Manheimer,...    »
 
Title:
Influence of control group on effect size in trials of acupuncture for chronic pain: a secondary analysis of an individual patient data meta-analysis. 
Abstract:
In a recent individual patient data meta-analysis, acupuncture was found to be superior to both sham and non-sham controls in patients with chronic pain. In this paper we identify variations in types of sham and non-sham controls used and analyze their impact on the effect size of acupuncture.Based on literature searches of acupuncture trials involving patients with headache and migraine, osteoarthritis, and back, neck and shoulder pain, 29 trials met inclusion criteria, 20 involving sham contro...    »
 
Journal title abbreviation:
PLoS ONE 
Year:
2014 
Journal volume:
Journal issue:
Pages contribution:
e93739 
Language:
eng 
TUM Institution:
Institut für Allgemeinmedizin