Evidence map›Paper›PMID 30464441›Full record

ArticleInternational journal of chronic obstructive pulmonary disease

Blood eosinophil count as a prognostic biomarker in COPD.

Yeon-Mok Oh, Keu Sung Lee, Yoonki Hong, Sung Chul Hwang, Jae Yeol Kim, Deog Keom Kim, Kwang Ha Yoo, Ji-Hyun Lee, Tae-Hyung Kim, Seong Yong Lim and 8 more

Open access · goldAbstract readMulticenter Study
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 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.9field-weighted citation impact, top 8% 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

25 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. Review
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  6. Observational
  7. Prognostic Value of Biomarkers in Chronic Obstructive Pulmonary Disease: A Comprehensive Review.International journal of chronic obstructive pulmonary disease · 2025
    Review
  8. Article
  9. Article
  10. Article
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  12. Article
  13. Predictors of High Sputum Eosinophils in Chronic Obstructive Pulmonary Disease.Chronic obstructive pulmonary diseases (Miami, Fla.) · 2022
    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

18 authors at 12 institutions in 2 countries.

Yeon-Mok OhDepartment of Pulmonary and Critical Care Medicine and Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
Keu Sung LeeDepartment of Pulmonary and Critical Care Medicine, Ajou University School of Medicine, Suwon, Korea, jhpamc@hanmail.net.
Yoonki HongDepartment of Internal Medicine and Environmental Health Center, Kangwon National University, Kangwon National University Hospital, Chuncheon, Korea.
Sung Chul HwangDepartment of Pulmonary and Critical Care Medicine, Ajou University School of Medicine, Suwon, Korea, jhpamc@hanmail.net.
Jae Yeol KimDepartment of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea.
Deog Keom KimDivision of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea.
Kwang Ha YooDepartment of Internal Medicine, Konkuk University School of Medicine, Seoul, Korea.
Ji-Hyun LeeDepartment of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
Tae-Hyung KimDivision of Pulmonology, Department of Internal Medicine, Hanyang University College of Medicine, Guri, Korea.
Seong Yong LimDivision of Pulmonary and Critical Care Medicine, Department of Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
Chin Kook RheeDivision of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary's Hospital, Catholic University of Korea, Seoul, Korea.
Hyoung Kyu YoonDivision of Respiratory and Critical Care Medicine, Department of Internal Medicine, College of Medicine, Korea University Anam Hospital, Seoul, Korea.
Sang Yeub LeeDivision of Respiratory and Critical Care Medicine, Department of Internal Medicine, College of Medicine, Korea University Anam Hospital, Seoul, Korea.
Yong Bum ParkDivision of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Hallym University Kangdong Sacred Heart Hospital, Seoul, Korea.
Jin Hee JungDepartment of Biomedical Informatics, Ajou University School of Medicine, Suwon, Korea.
Woo Jin KimDepartment of Internal Medicine and Environmental Health Center, Kangwon National University, Kangwon National University Hospital, Chuncheon, Korea.
Sang-Do LeeDepartment of Pulmonary and Critical Care Medicine and Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
Joo Hun ParkDepartment of Pulmonary and Critical Care Medicine, Ajou University School of Medicine, Suwon, Korea, jhpamc@hanmail.net.
Ajou University · KRUlsan College · KRKangwon National University Hospital · KRCHA University Bundang Medical Center · KRChung-Ang University · KRHallym University · KRHanyang University Guri Hospital · KRKangbuk Samsung Hospital · KRKonkuk University · KRKorea University Medical Center · KRSeoul National University · KRSt. Mary's Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHigh blood eosinophil count is a predictive biomarker for response to inhaled corticosteroids in prevention of acute exacerbation of COPD, and low blood eosinophil count is associated with pneumonia risk in COPD patients taking inhaled corticosteroids. However, the prognostic role of blood eosinophil count remains underexplored. Therefore, we investigated the associated factors and mortality based on blood eosinophil count in COPD.

methodsPatients with COPD were recruited from 16 hospitals of the Korean Obstructive Lung Disease cohort (n=395) and COPD in Dusty Area cohort (n=234) of Kangwon University Hospital. The two merged cohorts were divided based on blood eosinophil count into three groups: high (≥5%), middle (2%-5%), and low (<2%).

resultsThe high group had longer six-minute walk distance (high =445.8±81.4, middle =428.5±88.0, and low =414.7±86.3 m), higher body mass index (23.3±3.1, 23.1±3.1, and 22.5±3.2 kg/m

conclusionIn COPD, the severity of emphysema was independently linked with low blood eosinophil count and the longer survival period was associated with increased blood eosinophil count, though it was not proven in the multivariate analysis.

Indexed as

EosinophilsAgedBody Mass IndexCase-Control StudiesExercise ToleranceFemaleHumansLeukocytesLungMaleMiddle AgedPrognosisPulmonary Disease, Chronic ObstructivePulmonary EmphysemaRepublic of KoreaRisk Assessmentbiomarkerblood eosinophilCOPD

Identifiers

PMID30464441
PMCPMC6219410
OpenAlexW2898885300

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.