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Comparative Study
. 2022 May 23;17(5):e0262776.
doi: 10.1371/journal.pone.0262776. eCollection 2022.

Comparative efficacy of Chinese herbal injections for treating severe pneumonia: A protocol for systematic review and Bayesian network meta-analysis of randomized controlled trials

Lu Xiao  1   2   3 , Liqing Niu  1   2 , Xuemin Zhang  1   2 , Xuezheng Liu  1   2   3 , Xinqiao Liu  1   2   3 , Chongxiang Sun  1   2 , Xiaokun Yang  1   2
Affiliations
Comparative Study

Comparative efficacy of Chinese herbal injections for treating severe pneumonia: A protocol for systematic review and Bayesian network meta-analysis of randomized controlled trials

Lu Xiao et al. PLoS One. .

Abstract

Background: Severe pneumonia (SP) has a high mortality and is responsible for significant healthcare cost. Chinese herbal injections (CHIs) have been widely used in China as a novel and promising treatment option for SP. Therefore, this study will assess and rank the effectiveness of CHIs to provide more sights for the selection of SP treatment.

Method: Seven databases will be searched, including PubMed, the Cochrane Library, Embase, Web of Science, China National Knowledge Infrastructure (CNKI), Wanfang Database, and the Chinese Scientific Journal Database (VIP) from their inception up to October, 2021. The literatures screening, data extraction and the quality assessment of included studies will be conducted independently by two reviewers. Then Bayesian network meta-analysis (NMA) will be performed by WinBUGS 14.0 and STATA 14.0 software. Surface under the cumulative ranking curve (SUCRA) probability values will be applied to rank the examined treatments. The risk of bias of each included study will be evaluated using the Revised Cochrane risk-of-bias tool for randomized trials (ROB 2). Publication bias will be reflected by a funnel plot.

Results: The results of this NMA will be disseminated through a peer-reviewed journal publication.

Conclusion: Our study findings maybe reveal which CHI or CHIs will be better in the treatment of SP and provide more therapy strategies for clinical practitioners and patients.

Prospero registration number: CRD42021244587.

Strengths and limitations of this study: Bayesian network meta-analysis (NMA) can integrate direct evidence with indirect evidence of severe pneumonia treated by Chinese herbal injections to generate a clinically useful ranking of these regimens. This NMA will address Chinese herbal injections for SP and its findings may help to provide more sights for selection of SP treatment. Evidence drawn from an NMA is limited and should be interpreted with caution. We only included studies in Chinese and English languages, which may increase the publication bias.

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Fig 1
Fig 1. Flow diagram of study inclusion.
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