Evidence map›Paper›PMID 39467610›Full record

ArticleThe European respiratory journal2025

20-year trends in excess costs of COPD.

Joseph Emil Amegadzie, Jeenat Mehareen, Amir Khakban, Phalgun Joshi, Chris Carlsten, Mohsen Sadatsafavi

Abstract read
In one paragraph

Article in The European respiratory journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–field-weighted citation impact
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

20 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Short-Term Effects of Dupilumab in Eosinophilic COPD.Journal of clinical medicine · 2026
    Article
  7. LAMC2 Drives Airway Remodeling in COPD via EMT Regulation Through the AKT Pathway.International journal of chronic obstructive pulmonary disease · 2026
    Article
  8. Article
  9. Healthcare Costs and Trends of Multimorbidity in COPD Patients: A Population-Based Study in Singapore.International journal of chronic obstructive pulmonary disease · 2026
    Article
  10. PulmoClass-3DAtt: A Self-Attention Network for Classification of COPD, PRISm and Normal.International journal of chronic obstructive pulmonary disease · 2026
    Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Linking Lipid Metabolism and Immune Function: New Insights into Chronic Respiratory Diseases.Pathophysiology : the official journal of the International Society for Pathophysiology · 2025
    Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Joseph Emil AmegadzieRespiratory Evaluation Sciences Program, Collaboration for Outcomes Research and Evaluation, Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada.ORCID https://orcid.org/0000-0002-0459-7241
Jeenat MehareenRespiratory Evaluation Sciences Program, Collaboration for Outcomes Research and Evaluation, Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada.ORCID https://orcid.org/0000-0001-6991-8213
Amir KhakbanRespiratory Evaluation Sciences Program, Collaboration for Outcomes Research and Evaluation, Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada.
Phalgun JoshiLegacy for Airway Health and Centre for Lung Health, Vancouver Coastal Health Research Institute, Vancouver, BC, Canada.
Chris CarlstenLegacy for Airway Health and Centre for Lung Health, Vancouver Coastal Health Research Institute, Vancouver, BC, Canada.ORCID https://orcid.org/0000-0003-2455-6575
Mohsen SadatsafaviRespiratory Evaluation Sciences Program, Collaboration for Outcomes Research and Evaluation, Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada msafavi@mail.ubc.ca.ORCID https://orcid.org/0000-0002-0419-7862

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSeveral major risk factors for COPD, such as population ageing, smoking rates and air pollution levels, are rapidly changing, causing inevitable changes in the population burden of COPD. We determined the excess direct costs of COPD and their trend from 2001 to 2020.

methodsUsing administrative health data from British Columbia, Canada, we created a retrospective matched cohort of physician-diagnosed COPD patients and non-COPD individuals. Excess direct medical costs (in 2020 Canadian dollars (CAD)) were estimated by analysing hospital records, outpatient services, medications and community care services. Comorbidity classes were assessed using International Classification of Diseases codes. Excess COPD costs were estimated as the adjusted difference in direct medical costs between the COPD and non-COPD cohorts.

resultsThere were 208 554 and 404 703 individuals in the COPD and non-COPD cohorts, respectively (47.8% female; mean baseline age 69.1 and 68.2 years, respectively). Direct medical costs for COPD were CAD 9224 per patient-year compared to CAD 3396 per patient-year for non-COPD, giving rise to excess costs of CAD 5828 (95% CI 5759-5897) per patient-year. Excess costs increased by 48% over the study period. Excess costs due to comorbidities were CAD 3588 (95% CI 3554-3622) per patient-year, with cardiovascular-related conditions alone exceeding the costs attributed to COPD (CAD 1375

conclusionsDespite multifaceted prevention and management initiatives, COPD-related economic burden is increasing, with the majority of costs due to comorbid conditions. Rising per-patient costs, combined with the flat or increasing prevalence of COPD in many jurisdictions, indicates a significant increase in COPD burden.

Indexed as

Health Care CostsPulmonary Disease, Chronic ObstructiveAgedAged, 80 and overBritish ColumbiaComorbidityCost of IllnessFemaleHumansMaleMiddle AgedRetrospective StudiesRisk Factors

Identifiers

PMID39467610
PMCPMC11780723

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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.