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KMID : 0861120150190030115
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Korean Journal of Oriental Preventive Medicine
2015 Volume.19 No. 3 p.115 ~ p.129
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A Systematic Review on clinical studies of Korean medicine for smoking cessation - Focusing on study design
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Park Yu-Lee
Jang Soo-Bin
Sung Joo-Won
Yang Jae-hyung
Park Bong-kyu
Ko Seong-Gyu
Sung Hyun-Kyung
Park Sun-Ju
Kweon Seung-Uk
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Abstract
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Objective : This study aims to review clinical studies evaluating effectiveness of Korean medicine for smoking cessation. It also aims to critically analyze study design of the studies and suggest strategies for future clinical studies on smoking cessation.
Method : Only domestic databases such as RISS, KISS, DBPIA, NDSL, and OASIS were searched from August to November 2011 for clinical studies on smoking cessation. There was no limitation on study design, period, and language. The studies were qualitatively analyzed focusing on study design including participants, intervention, and outcome measurements.
Results : Out of 537 studies searched, 27 studies were included in the analysis. 56% of the studies were observational studies, 33% were quasi-experimental studies, and 11% were randomized controlled studies. 44% and 32% of the studies were conducted at educational institutions and hospitals, respectively. The average number of the participants were 182, which ranged from 15 to 1,056. Most of the participants were male. Intervention used were mostly auricular acupuncture, and the most frequently used acupoints were Lung, Shinmun, Endocrine, Pharynx & Larynx, and Inner nose. The average length of treatment period was four weeks, and the treatment was provided twice per week. The outcomes were measured at the end of the treatment and only 26% of the studies conducted follow-up measurements. 26% of the studies utilized questionnaires of which validity was evaluated and only 15% used objective measurements such as exhaled Carbon monoxide and Cotinine test.
Conclusion : Though many clinical studies on effectiveness of Korean medicine for smoking cessation were conducted, there are still debates on quality of evidence. Recently, guidelines have been developed for clinical trials evaluating effectiveness of smoking cessation program. Thus, in the future, clinical studies should be developed based on these guidelines and designed to improve validity and reliability.
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KEYWORD
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Systematic review, clinical studies, Korean medicine, smoking cessation, study design
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