Evidence map›Paper›PMID 33883891›Full record

ArticleInternational journal of chronic obstructive pulmonary disease

Peripheral Blood Eosinophils and Nine Years Mortality in COPD Patients.

Robson Prudente, Renata Ferrari, Carolina B Mesquita, Luiz H S Machado, Estefânia A T Franco, Irma Godoy, Suzana E 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 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.9field-weighted citation impact, top 13% 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

15 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
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  5. Review
  6. Article
  7. Clinical Characteristics and Outcomes of Eosinophilic Exacerbations of COPD.International journal of chronic obstructive pulmonary disease · 2025
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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 PrudenteDepartment of Internal Medicine, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.ORCID 0000-0003-1175-1435
Renata FerrariDepartment of Internal Medicine, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.ORCID 0000-0002-6740-5278
Carolina B MesquitaDepartment of Internal Medicine, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.ORCID 0000-0002-0156-7004
Luiz H S MachadoDepartment of Internal Medicine, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.
Estefânia A T FrancoDepartment of Internal Medicine, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.
Irma GodoyDepartment of Internal Medicine, Botucatu School of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.
Suzana E TanniDepartment of Internal Medicine, 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

backgroundEosinophil counts increase during chronic obstructive pulmonary disease (COPD) exacerbation and influence the response to different agents (such as inhaled and systemic corticosteroids), as well as increase the production of other inflammatory cytokines. However, few studies have evaluated the association between peripheral blood eosinophils with mortality rate.

objectiveTo evaluate the association between peripheral blood eosinophils and mortality rate in COPD patients over a nine-year period. STUDY DESIGN AND

methodsThis cohort included 133 COPD patients assessed at baseline by spirometry, pulse oximetry (SpO

resultsNineteen patients did not complete follow-up and it was not possible to identify the date of death in four others. Therefore, 110 patients were included in the analysis. At baseline, 81% presented ≥150 eosinophil cells and 72% presented ≥2%. We identified a three-fold higher risk of death in those with <2% eosinophils and <150 cells. We did not identify statistical differences when using other cutoff points.

conclusionThe decrease in number of peripheral eosinophils, with cutoff points at 2% and 150 cells, may be associated with a higher risk of death in COPD patients over nine years.

Indexed as

EosinophilsPulmonary Disease, Chronic ObstructiveForced Expiratory VolumeHumansRespiratory Function TestsSpirometrychronic airflow obstructiondeath rateinflammation

Identifiers

PMID33883891
PMCPMC8053712
OpenAlexW3155926726

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.