Evidence map›Paper›PMID 25478192›Full record

ArticleBMJ open respiratory research2014

Prevalence and risk factors for chronic co-infection in pulmonary Mycobacterium avium complex disease.

Kohei Fujita, Yutaka Ito, Toyohiro Hirai, Takeshi Kubo, Kaori Togashi, Satoshi Ichiyama, Michiaki Mishima

Open access · goldAbstract read
In one paragraph

Article in BMJ open respiratory research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
1.3field-weighted citation impact, top 19% 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

32 citing papers in PubMed, 41 citations in OpenAlex.

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  16. Co-infection withRespirology case reports · 2022
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  17. Clinical Features and Treatment Outcomes of PulmonaryOpen forum infectious diseases · 2022
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  18. 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

7 authors at 1 institution in 1 country.

Kohei FujitaDepartment of Respiratory Medicine , Graduate School of Medicine, Kyoto University , Kyoto , Japan.
Yutaka ItoDepartment of Respiratory Medicine , Graduate School of Medicine, Kyoto University , Kyoto , Japan.
Toyohiro HiraiDepartment of Respiratory Medicine , Graduate School of Medicine, Kyoto University , Kyoto , Japan.
Takeshi KuboDepartment of Diagnostic Imaging and Nuclear Medicine , Graduate School of Medicine, Kyoto University , Kyoto , Japan.
Kaori TogashiDepartment of Diagnostic Imaging and Nuclear Medicine , Graduate School of Medicine, Kyoto University , Kyoto , Japan.
Satoshi IchiyamaDepartment of Clinical Laboratory Medicine , Graduate School of Medicine, Kyoto University , Kyoto , Japan.
Michiaki MishimaDepartment of Respiratory Medicine , Graduate School of Medicine, Kyoto University , Kyoto , Japan.
Kyoto University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPatients with pulmonary Mycobacterium avium complex (MAC) disease are often co-infected with various pathogenic microorganisms. This study aimed to determine the prevalence of co-infection with non-MAC pathogens and the risk factors associated with co-infection in patients with pulmonary MAC disease.

methodsWe retrospectively reviewed the patient characteristics, microbiological results and chest CT findings in 275 patients with pulmonary MAC who visited the Kyoto University Hospital from January 2001 to May 2013. We defined chronic pathogenic co-infection as the isolation of non-MAC pathogens from sputum samples taken on more than two visits that occurred at least 3 months apart.

resultsThe participants were predominantly female (74.5%) and infected with M. avium (75.6%). Chronic co-infection with any pathogen was observed in 124 patients (45.1%). Methicillin-sensitive Staphylococcus aureus (MSSA; n=64), Pseudomonas aeruginosa (n=35) and Aspergillus spp (n=18) were the most prevalent pathogens. The adjusted factors were chronic obstructive pulmonary disease (COPD; OR=4.2, 95% CI 1.6 to 13.1) and pulmonary M. intracellulare disease (OR=2.2, 95% CI 1.1 to 4.4) in chronic co-infections; COPD (OR=4.2, 95% CI 2.1 to 31.4), long duration of MAC disease (OR=2.2, 95% CI 1.2 to 4.4) and nodules (OR=3.5, 95% CI 1.2 to 13.2) in chronic MSSA co-infection; COPD (OR=7.5, 95% CI 2.1 to 31.4) and lower lobe involvement (OR=9.9, 95% CI 2.0 to 90.6) in chronic P. aeruginosa co-infection; and use of systemic corticosteroids (OR=7.1, 95% CI 1.2 to 50.9) and pulmonary M. intracellulare disease (OR=4.0, 95% CI 1.1 to 14.5) in chronic Aspergillus spp co-infection.

conclusionsPatients with pulmonary MAC disease frequently had chronic co-infections with pathogenic microorganisms such as MSSA, P. aeruginosa and Aspergillus. The risk factors for chronic co-infection were COPD and pulmonary M. intracellulare disease.

Indexed as

Atypical Mycobacterial InfectionBacterial InfectionBronchiectasisRespiratory Infection

Identifiers

PMID25478192
PMCPMC4212714
OpenAlexW2156939312

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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.