Evidence map›Paper›PMID 42211409›Full record

ArticleIntegrative medicine research2026

Risk of bias among Chinese-language randomized controlled trials on Chinese herbal medicine included in meta-analyses published in 2021-2022: A cross-sectional study.

Yue Jiang, Claire Chenwen Zhong, Betty Huan Wang, Shanshan Xu, Fai Fai Ho, Ming Hong Kwong, Leonard Ho, Joson Hao-Shen Zhou, K C Lam, Jian-Ping Liu and 2 more

Abstract read
In one paragraph

Article in Integrative medicine research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Yue JiangSchool of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong.
Claire Chenwen ZhongJockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong.
Betty Huan WangJockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong.
Shanshan XuDepartment of Public Health and General Medicine, School of Life Sciences, Anhui University of Chinese Medicine, Hefei, China.
Fai Fai HoSchool of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong.
Ming Hong KwongJockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong.
Leonard HoJockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong.
Joson Hao-Shen ZhouJockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong.
K C LamJockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong.
Jian-Ping LiuCenter for Evidence-based Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
Bao-Ting ZhangSchool of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong.
Vincent Ch ChungJockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The reliability of meta-analyses on Chinese herbal medicine (CHM) largely depends on the methodological quality of the included randomized controlled trials (RCTs). This study assessed the risk of bias (RoB) among Chinese-language CHM RCTs embedded in meta-analyses (MAs) published between 2021 and 2022. Methods: Chinese-language CHM MAs were identified through literature searches across seven databases (three international and four Chinese databases). RCTs were extracted from the eligible MAs and their methodological quality was appraised using the Cochrane Risk of Bias (RoB) tool. Logistic regression analyses were conducted to explore associations between bibliographical characteristics and quality. Results: Of 2060 RCTs (published between 1997-2021), 93.0% ( Conclusion: The methodological quality of Chinese-language RCTs embedded in recently published MAs was found to be unsatisfactory, indicating their limited utility in informing clinical decision-making. There is an urgent need for enhancing clinical trial training for researchers, reviewers, and editors in China.

Indexed as

BiasClinical trialsQualityRandomized controlled trialsResearch design

Identifiers

PMID42211409
PMCPMC13214238

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.