Impact of including Korean randomized controlled trials in Cochrane reviews of acupuncture.

<h4>Objective</h4>Acupuncture is commonly practiced in Korea and is regularly evaluated in clinical trials. Although many Cochrane reviews of acupuncture include searches of both English and Chinese databases, there is no information on the value of searching Korean databases. This study...

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Autores principales:	Kun Hyung Kim, Jae Cheol Kong, Jun-Yong Choi, Tae-Young Choi, Byung-Cheul Shin, Steve McDonald, Myeong Soo Lee
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2bd6c7ab03f54d5f94d77d8a435631c5
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spelling	oai:doaj.org-article:2bd6c7ab03f54d5f94d77d8a435631c52021-11-18T08:12:17ZImpact of including Korean randomized controlled trials in Cochrane reviews of acupuncture.1932-620310.1371/journal.pone.0047619https://doaj.org/article/2bd6c7ab03f54d5f94d77d8a435631c52012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23071826/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Objective</h4>Acupuncture is commonly practiced in Korea and is regularly evaluated in clinical trials. Although many Cochrane reviews of acupuncture include searches of both English and Chinese databases, there is no information on the value of searching Korean databases. This study aimed to investigate the impact of searching Korean databases and journals for trials eligible for inclusion in existing Cochrane acupuncture reviews.<h4>Methods</h4>We searched 12 Korean databases and seven Korean journals to identify randomised trials meeting the inclusion criteria for acupuncture reviews in the Cochrane Database of Systematic Reviews. We compared risk of bias assessments of the Korean trials with the trials included in the Cochrane acupuncture reviews. Where possible, we added data from the Korean trials to the existing meta-analyses in the relevant Cochrane review and conducted sensitivity analyses to test the robustness of the results.<h4>Results</h4>Sixteen Korean trials (742 participants) met the inclusion criteria for eight Cochrane acupuncture reviews (125 trials; 13,041 participants). Inclusion of the Korean trials provided data for 20% of existing meta-analyses (24 out of 120). Inclusion of the Korean trials did not change the direction of effect in any of the existing meta-analyses. The effect size and heterogeneity remained mostly unchanged. In only one meta-analysis did the significance change. Compared to the studies included in the Cochrane acupuncture reviews, the risk of bias in the Korean trials was higher in terms of outcome assessor blinding and allocation concealment.<h4>Conclusions</h4>Many Korean studies contributed additional data to the existing meta-analyses in Cochrane acupuncture reviews. Although inclusion of these studies did not alter the results of the meta-analyses, comprehensive searches of the literature are important to avoid potential language bias. The identification and inclusion of eligible Korean trials should be considered for reviews of acupuncture.Kun Hyung KimJae Cheol KongJun-Yong ChoiTae-Young ChoiByung-Cheul ShinSteve McDonaldMyeong Soo LeePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 10, p e47619 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kun Hyung Kim Jae Cheol Kong Jun-Yong Choi Tae-Young Choi Byung-Cheul Shin Steve McDonald Myeong Soo Lee Impact of including Korean randomized controlled trials in Cochrane reviews of acupuncture.
description	<h4>Objective</h4>Acupuncture is commonly practiced in Korea and is regularly evaluated in clinical trials. Although many Cochrane reviews of acupuncture include searches of both English and Chinese databases, there is no information on the value of searching Korean databases. This study aimed to investigate the impact of searching Korean databases and journals for trials eligible for inclusion in existing Cochrane acupuncture reviews.<h4>Methods</h4>We searched 12 Korean databases and seven Korean journals to identify randomised trials meeting the inclusion criteria for acupuncture reviews in the Cochrane Database of Systematic Reviews. We compared risk of bias assessments of the Korean trials with the trials included in the Cochrane acupuncture reviews. Where possible, we added data from the Korean trials to the existing meta-analyses in the relevant Cochrane review and conducted sensitivity analyses to test the robustness of the results.<h4>Results</h4>Sixteen Korean trials (742 participants) met the inclusion criteria for eight Cochrane acupuncture reviews (125 trials; 13,041 participants). Inclusion of the Korean trials provided data for 20% of existing meta-analyses (24 out of 120). Inclusion of the Korean trials did not change the direction of effect in any of the existing meta-analyses. The effect size and heterogeneity remained mostly unchanged. In only one meta-analysis did the significance change. Compared to the studies included in the Cochrane acupuncture reviews, the risk of bias in the Korean trials was higher in terms of outcome assessor blinding and allocation concealment.<h4>Conclusions</h4>Many Korean studies contributed additional data to the existing meta-analyses in Cochrane acupuncture reviews. Although inclusion of these studies did not alter the results of the meta-analyses, comprehensive searches of the literature are important to avoid potential language bias. The identification and inclusion of eligible Korean trials should be considered for reviews of acupuncture.
format	article
author	Kun Hyung Kim Jae Cheol Kong Jun-Yong Choi Tae-Young Choi Byung-Cheul Shin Steve McDonald Myeong Soo Lee
author_facet	Kun Hyung Kim Jae Cheol Kong Jun-Yong Choi Tae-Young Choi Byung-Cheul Shin Steve McDonald Myeong Soo Lee
author_sort	Kun Hyung Kim
title	Impact of including Korean randomized controlled trials in Cochrane reviews of acupuncture.
title_short	Impact of including Korean randomized controlled trials in Cochrane reviews of acupuncture.
title_full	Impact of including Korean randomized controlled trials in Cochrane reviews of acupuncture.
title_fullStr	Impact of including Korean randomized controlled trials in Cochrane reviews of acupuncture.
title_full_unstemmed	Impact of including Korean randomized controlled trials in Cochrane reviews of acupuncture.
title_sort	impact of including korean randomized controlled trials in cochrane reviews of acupuncture.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/2bd6c7ab03f54d5f94d77d8a435631c5
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Impact of including Korean randomized controlled trials in Cochrane reviews of acupuncture.

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