Evidence map›Paper›PMID 34764645›Full record

ArticleInternational journal of chronic obstructive pulmonary disease

Nine-Year Follow-Up of Interleukin 6 in Chronic Obstructive Pulmonary Disease - Complementary Results from Previous Studies.

Robson Prudente, Renata Ferrari, Carolina Mesquita, Luiz Machado, Estefânia Franco, Irma Godoy, Suzana Tanni

Open access · goldAbstract read
In one paragraph

Article in International journal of chronic obstructive pulmonary disease. 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
1.2field-weighted citation impact, top 20% 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, 9 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 1 institution in 1 country.

Robson PrudenteClinical Hospital of Botucatu Medical School, Department of Internal Medicine, Pneumology Area, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.ORCID 0000-0003-1175-1435
Renata FerrariDepartment of Internal Medicine, Pneumology Area, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.ORCID 0000-0002-6740-5278
Carolina MesquitaDepartment of Internal Medicine, Pneumology Area, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.ORCID 0000-0002-0156-7004
Luiz MachadoDepartment of Internal Medicine, Pneumology Area, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.
Estefânia FrancoClinical Hospital of Botucatu Medical School, Department of Internal Medicine, Pneumology Area, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.
Irma GodoyDepartment of Internal Medicine, Pneumology Area, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.
Suzana TanniDepartment of Internal Medicine, Pneumology Area, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.ORCID 0000-0002-2587-2759
Universidade Estadual Paulista (Unesp) · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSystemic manifestations of chronic obstructive pulmonary disease (COPD) are related to increased systemic inflammatory process; however, it is not entirely clear how much they are related and how the systemic inflammation, in particular interleukin-6 (IL-6), is associated with exacerbation and mortality risk.

objectiveTo evaluate the role of IL-6 in COPD patients over nine years. STUDY DESIGN AND

methodsA total of 133 COPD patients were assessed at baseline between 2004 and 2006 and reassessed after three and nine years through clinical evaluation, comorbidities, hematological blood count and IL-6 analysis.

resultsAfter nine years, 19 patients lost the follow-up and were not possible to identify the date of death of four patients; 12 refused to participate and 1 could not be involved due to recurrent exacerbations. Therefore, 33 patients were included in the reassessment after nine years of follow-up and 92 patients were included in the Cox mortality analysis with IL-6 as a time-dependent covariate. Regarding the inflammatory profile, in patients who survived after nine years, there was a significant increase in IL-6 [0.4 (0.2-0.8) vs 5.7 (3.4-11) pg/mL; p < 0.001] and reduction in lymphocyte count [2.1 (1.6-2.4) vs 1.4 (1.2-2.1)10^9/L; p < 0.01] with an increase in the neutrophil/lymphocyte ratio (2.0 ± 0.7 vs 2.7 ± 1.2; p = 0.003). The Cox mortality model did not show a statistical significance influence of IL-6 assessed during the follow-up.

conclusionThere was a progressive increase in IL-6 during the follow-up, however, without influence on mortality.

Indexed as

Interleukin-6Pulmonary Disease, Chronic ObstructiveBiomarkersDisease ProgressionFollow-Up StudiesHumansInterleukin-8Severity of Illness IndexBiomarkersInterleukin-6Interleukin-8chronic obstructive pulmonary diseaseinflammationinterleukin-6mortalityseverity of illness index

Identifiers

PMID34764645
PMCPMC8572745
OpenAlexW3210213949

What OpenQuestion holds

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LicenceCC BY-NC
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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.