Evidence map›Paper›PMID 35321533›Full record

ArticleInternational journal of chronic obstructive pulmonary disease

Disease Trajectories and Impact of One Moderate Exacerbation in Gold B COPD Patients.

Anders Løkke, Ole Hilberg, Peter Lange, Rikke Ibsen, Georgios Stratelis, Sofie de Fine Licht, Jesper Lykkegaard

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 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 6% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. The Societal and Economic Burden of COPD in Saudi Arabia.Global journal on quality and safety in healthcare · 2026
    Article
  7. Article
  8. Article
  9. Article
  10. Observational
  11. Article
  12. Observational
  13. The Burden of COPD with Type 2 Inflammation in North-West Continental Europe.International journal of chronic obstructive pulmonary disease · 2025
    Review
  14. Article
  15. Article
  16. Observational
  17. Article
  18. Article
  19. Article
  20. Article
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 4 institutions in 2 countries.

Anders LøkkeDepartment of Medicine, Little Belt Hospital, Vejle, Denmark.ORCID 0000-0002-6905-4141
Ole HilbergDepartment of Medicine, Little Belt Hospital, Vejle, Denmark.
Peter LangeMedical Department, Copenhagen University Hospital-Herlev, Herlev, Denmark.ORCID 0000-0003-0401-0081
Rikke Ibseni2Minds, Aarhus, Denmark.
Georgios StratelisAstraZeneca Nordic, Södertälje, Sweden.
Sofie de Fine LichtAstraZeneca Nordic, Södertälje, Sweden.ORCID 0000-0001-7855-4706
Jesper LykkegaardResearch Unit for General Practice, Institute of Public Health, University of Southern Denmark, Odense, Denmark.ORCID 0000-0001-9128-6136
University of Southern Denmark · DKAstraZeneca (Sweden) · SEUniversity of Copenhagen · DKUppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Studies have shown that exacerbation in chronic obstructive pulmonary disease (COPD) increases the risk of further exacerbations. Our aim was to investigate the impact of a single moderate exacerbation on the odds of subsequent exacerbations and death in GOLD B COPD patients. Methods: This hospital-based nationwide, cohort study in Denmark included all patients ≥40 years of age with an in- and/or outpatient ICD-10 J44 diagnosis (COPD Register, 2008-2014). Index was date of first registered modified Medical Research Council (mMRC) score ≥2; baseline period was 12 months pre-index. At index, patients were grouped as: B0, no exacerbation; and B1, one moderate exacerbation during the previous year, and followed for three consecutive years in 2008-2017 for development of moderate- (short-term use of prednisolone or prednisone) and severe (emergency visit or hospitalization) exacerbations and death. Using B0 as reference, the odds ratio (OR) for exacerbation and death in GOLD B1 was estimated with multinominal logistic regression and a Cox model estimated the hazard ratio for exacerbation accounting for recurrent events. Results: In total, 8,453 patients (mean age 70 years, 51% male) were included, of which GOLD B0 4,545 and GOLD B1 3,908 patients. During the 3-year follow-up, 34.1% and 24.9% of GOLD B0 and B1, respectively, had none or one moderate exacerbation whereas 61.9% and 71.2% of B0 and B1, respectively, had a severe trajectory with multiple moderate and/or a severe exacerbation or died. In B1 patients, the OR for 1 moderate, ≥2 moderate exacerbations, ≥1 severe exacerbation was 1.58 [CI 1.33-1.87], 2.60 [2.19-3.08], 2.08 [1.76-2.45], respectively, and 1.85 [1.57-2.17] for death compared with B0. Conclusion: One moderate exacerbation in COPD patients with high symptom burden increases the odds of subsequent exacerbations and death during the three following years. The results emphasize the importance of preventing exacerbations in GOLD B patients.

Indexed as

Pulmonary Disease, Chronic ObstructiveAgedCohort StudiesDisease ProgressionFemaleHospitalizationHumansMaleOutpatientsSeverity of Illness IndexCOPDdyspneaepidemiologyexacerbationGOLDmortality

Identifiers

PMID35321533
PMCPMC8937604
OpenAlexW4220667087

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.