Evidence map›Paper›PMID 34645463›Full record

SynthesisAnnals of clinical microbiology and antimicrobials2021

Antibiotic heteroresistance in Mycobacterium tuberculosis isolates: a systematic review and meta-analysis.

Mao Ye, Wen Yuan, Leila Molaeipour, Khalil Azizian, Alireza Ahmadi, Ebrahim Kouhsari

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Annals of clinical microbiology and antimicrobials, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 2 pooled it
–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

30 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  10. Heteroresistance inFrontiers in cellular and infection microbiology · 2026
    Review
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  13. Dissecting rifampicin heteroresistance inJournal of medical microbiology · 2025
    Article
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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

6 authors.

Mao YeDepartment of Pharmacy, Clinical Pharmaceutics Room, Sichuan Science City Hospital, Mianyang, 621000, China.
Wen YuanSichuan College of Traditional Chinese Medicine, Mianyang, 621000, China.
Leila MolaeipourDepartment of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
Khalil AzizianDepartment of Clinical Microbiology, Sirjan School of Medical Sciences, P.O. Box 78169-16338, Sirjan, Iran. kh.azizian@sirums.ac.ir.
Alireza AhmadiLaboratory Sciences Research Center, Golestan University of Medical Sciences, Gorgan, Iran.
Ebrahim KouhsariLaboratory Sciences Research Center, Golestan University of Medical Sciences, Gorgan, Iran. dr.kouhsari@goums.ac.ir.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMycobacterium tuberculosis (MTB) is responsible for tuberculosis; that continues to be a public health threat across the globe. Furthermore, increasing heteroresistance (HR)-the presence of resistant and susceptible isolates among MTB strains- has been reported from around the world. This phenomenon can lead to full resistance development and treatment failure.

methodsWe systematically searched the relevant studies in PubMed, Scopus, and Embase (Until October 21, 2020). The study outcomes revealed the weighted pooled prevalence of antibiotic HR in MTB isolates with subgroup analysis by year, quality of study, and heteroresistance detection method.

resultsA total of 38 studies which had investigated MTB isolates were included in the meta-analysis. Geographically, the highest number of studies were reported from Asia (n  =  24), followed by Africa (n  =  5). Nineteen studies reported HR to isoniazid, with a weighted pooled prevalence of 5% (95% CI 0-12) among 11,761 MTB isolates. Also, there is no important trend for the subgroup analysis by the study period (2001-2014 vs 2015-2017 vs 2018-2020). HR to rifampin was reported in 17 studies, with a weighted pooled prevalence of 7% (95% CI 2-14) among 3782 MTB isolates. HR to fluoroquinolone and ethambutol were reported in 12 and 4 studies, respectively, with weighted pooled prevalence of 10% and 1% among 2153 and 1509 MTB isolates, correspondingly.

conclusionBased on our analysis, HR in MTB isolates with different frequency rate is present worldwide. Thus, the selection of appropriate and reliable methods for HR detection is crucial for TB eradication.

Indexed as

Drug Resistance, BacterialAnti-Bacterial AgentsFluoroquinolonesHumansIsoniazidMycobacterium tuberculosisRifampinTuberculosisAnti-Bacterial AgentsFluoroquinolonesIsoniazidRifampinDrug resistanceFluoroquinolonesHeteroresistanceIsoniazidRifampin

Identifiers

PMID34645463
PMCPMC8513340

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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.