Evidence map›Paper›PMID 27760557›Full record

ReviewSystematic reviews2016

Chinese herbal medicine for the treatment of primary hypertension: a methodology overview of systematic reviews.

Zhao Xinke, Li Yingdong, Feng Mingxia, Liu Kai, Chen Kaibing, Lu Yuqing, Sun Shaobo, Song Peng, Liu Bin

Open access · goldAbstract readReview
In one paragraph

Review in Systematic reviews, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.7field-weighted citation impact, top 24% of its field
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

4 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
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

9 authors at 3 institutions in 1 country.

Zhao XinkeSchool of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China.
Li YingdongSchool of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, China. lydj412@163.com.
Feng MingxiaThe Hospital Affiliated to Gansu College of TCM, Lanzhou, 730020, China.
Liu KaiKey Lab of Prevention and Treatment for Chronic Disease by Traditional Chinese Medicine of Gansu Province, Lanzhou, 730000, China.
Chen KaibingThe Hospital Affiliated to Gansu College of TCM, Lanzhou, 730020, China.
Lu YuqingThe Hospital Affiliated to Gansu College of TCM, Lanzhou, 730020, China.
Sun ShaoboKey Lab of Prevention and Treatment for Chronic Disease by Traditional Chinese Medicine of Gansu Province, Lanzhou, 730000, China.
Song PengKey Lab of Prevention and Treatment for Chronic Disease by Traditional Chinese Medicine of Gansu Province, Lanzhou, 730000, China.
Liu BinKey Lab of Prevention and Treatment for Chronic Disease by Traditional Chinese Medicine of Gansu Province, Lanzhou, 730000, China.
Gansu University of Traditional Chinese Medicine · CNAffiliated Hospital of Jiangxi College of TCM · CNLanzhou University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChinese herbal medicine has been used to treat hypertension in China and East Asia since centuries. In this study, we conduct an overview of systematic reviews of Chinese herbal medicine in the treatment of primary hypertension to 1) summarize the conclusions of these reviews, 2) evaluate the methodological quality of these reviews, and 3) rate the confidence in the effect on each outcome.

methodsWe comprehensively searched six databases to retrieve systematic reviews of Chinese herbal medicine for primary hypertension from inception to December 31, 2015. We used AMSTAR to evaluate the methodological quality of included reviews, and we classified the quality of evidence for each outcome in included reviews using the GRADE approach.

resultsA total of 12 systematic reviews with 31 outcomes were included, among which 11 systematic reviews focus on the therapeutic effect of Chinese herbal medicine combined with conventional medicine or simple Chinese herbal medicine versus simple conventional medicine. Among the 11 items of AMSTAR, the lowest quality was "providing a priori design" item, none review conformed to this item, the next was "stating the conflict of interest" item, only three reviews conformed to this item. Five reviews scored less than seven in AMSTAR, which means that the overall methodological quality was fairly poor. For GRADE, of the 31 outcomes, the quality of evidence was high in none (0 %), moderate in three (10 %), low in 19 (61 %), and very low in nine (29 %). Of the five downgrading factors, risk of bias (100 %) was the most common downgrading factor in the included reviews, followed by imprecision (42 %), inconsistency (39 %), publication bias (39 %), and indirectness (0 %).

conclusionsThe methodological quality of systematic reviews about Chinese herbal medicine for primary hypertension is fairly poor, and the quality of evidence level is low. Physicians should be cautious when applying the interventions in these reviews for primary hypertension patients in clinical practice.

Indexed as

Review Literature as TopicDrugs, Chinese HerbalEssential HypertensionHumansMedicine, Chinese TraditionalPublication BiasResearch DesignDrugs, Chinese HerbalChinese herbal medicineGRADEMethodological qualityOverviewPrimary hypertensionQuality of evidence

Identifiers

PMID27760557
PMCPMC5072301
OpenAlexW2533030965

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.