Evidence map›Paper›PMID 25248118›Full record

ArticlePloS one2014

Evaluation of BACTEC MGIT 960 system for testing susceptibility of Mycobacterium tuberculosis to first-line drugs in China.

Ping Zhao, Fang Fang, Qin Yu, Jiao Guo, Jian-Hua Zhang, Jifu Qu, Yingjie Liu

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

9 citing papers in PubMed, 20 citations in OpenAlex.

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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

7 authors at 2 institutions in 1 country.

Ping ZhaoTuberculosis Clinic, Chaoyang Distric Center for Disease Control and Prevention, Chaoyang District, Beijing, P.R. China.
Fang FangDepartment of Endocrinology, Chongqing Hospital of Traditional Chinese Medicine and Department of Endocrinology Chongqing No. 1 People's Hospital, Jiangbei District, Chongqing City, P.R. China.
Qin YuTuberculosis Clinic, Chaoyang Distric Center for Disease Control and Prevention, Chaoyang District, Beijing, P.R. China.
Jiao GuoTuberculosis Clinic, Chaoyang Distric Center for Disease Control and Prevention, Chaoyang District, Beijing, P.R. China.
Jian-Hua ZhangTuberculosis Clinic, Chaoyang Distric Center for Disease Control and Prevention, Chaoyang District, Beijing, P.R. China.
Jifu QuDepartment of Emergency Medicine, Daping Hospital, Third Military Medical University, Yuzhong District, Chongqing City, P.R. China.
Yingjie LiuTuberculosis Clinic, Chaoyang Distric Center for Disease Control and Prevention, Chaoyang District, Beijing, P.R. China.
Daping Hospital · CNFirst People's Hospital of Chongqing · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe purpose of this study was to evaluate the performance of the BACTEC MGIT 960 (M960) system compared with the proportion method (PM) on Löwenstein-Jensen (L-J) medium in a peripheral laboratory in China for the testing of Mycobacterium tuberculosis (MTB) susceptibility to streptomycin (SM), isoniazid (INH) rifampicin (RIF) and ethambutol (EMB) a combination known as SIRE.

methodsThe susceptibility of 205 clinical isolates of MTB to SM, INH, RIF and EMB was performed with the M960 system. The drugs were tested at the following concentrations: 1.0 µg/ml for SM, 0.1 µg/ml for INH, 1.0 µg/ml for RIF, and 5.0 µg/ml for EMB. The results were compared with those obtained by the L-J PM. The L-J PM at an arbiter site was used to resolve any discordant results.

resultsThe overall consistency was 96.6% and concordance values were 95.6% for SM, 97.6% for INH, 98.0% for RIF and 95.1% for EMB. The overall sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of the M960 system for PM (the standard method) was 95.6%, 97.3%, 96.2% and 96.9% respectively, and the sensitivity were 93.3% for SM, 96.9% for INH, 97.4% for RIF and 94.6% for EMB, the specificity were 96.9% for SM, 98.2% for INH, 98.4% for RIF and 95.5% for EMB, the PPV were 94.6% for SM, 97.9% for INH, 97.4% for RIF and 94.6% for EMB, the NPV were 96.2% for SM, 97.3% for INH, 98.4% for RIF and 95.5% for EMB. The turnaround time with the M960 system (median 8.0 days, ranged from 5 to 14 days) was significantly shorter than that with the PM (28 days or 42 days).

conclusionThere was a substantial degree of agreement between the two methods. The M960 system was a reliable and rapid method for SIRE susceptibility testing of tuberculosis in China.

Indexed as

Antitubercular AgentsChinaEthambutolHumansIsoniazidMicrobial Sensitivity TestsMycobacterium tuberculosisPredictive Value of TestsReproducibility of ResultsRifampinSensitivity and SpecificityStreptomycinAntitubercular AgentsEthambutolIsoniazidRifampinStreptomycin

Identifiers

PMID25248118
PMCPMC4172428
OpenAlexW2075131803

What OpenQuestion holds

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LicenceCC BY
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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.