Evidence-Based Complementary and Alternative Medicine / 2013 / Article / Tab 1

Review Article

Systematic Reviews and Meta-Analyses of Traditional Chinese Medicine Must Search Chinese Databases to Reduce Language Bias

Table 1

Comparison of 2 systematic reviews on acupuncture for chronic asthma.

McCarney et al., 2004 [8]Yu et al., 2010 [9]

JournalCochrane Database of Systematic ReviewsChinese Acupuncture and Moxibustion
Time period for included studiesTill August 2008January 2000–October 2009
Chinese databases searched03
International databases searched32
Number of RCTs identified1222
Number and % of RCTs identified from Chinese databases0 (0.00%)17 (77.27%)
Total number of patients3503058
Publication biasUnable to assess due to a limited number of included studies on each outcomeNo clear publication bias for outcomes including total improvement rate, FEV1, and PEFR, unable to assess publication bias on FVC due to a small number of included studies
Main resultsNo statistically significant or clinically relevant effects were found for acupuncture when compared to sham acupunctureThe acupuncture group showed a greater total improvement rate and significantly improved PEFR, FVC, and FEV1/FVC as compared to its control
ConclusionNo enough evidence for making any conclusions on the value of acupuncture in the treatment of asthmaAcupuncture can significantly improve the overall improvement, PEFR, FVC, and FEV1/FVC

PEFR: peak expiratory flow rates; FVC: forced vital capacity; FEV1: forced expiratory volume in one second.

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