Evidence map›Paper›PMID 29368608›Full record

ArticleBMC pulmonary medicine2018

Burden of asthma and COPD overlap (ACO) in Taiwan: a nationwide population-based study.

Sumitra Shantakumar, Raoh-Fang Pwu, Liesel D'Silva, Keele Wurst, Yao-Wen Kuo, Yen-Yun Yang, Yi-Chen Juan, K Arnold Chan

Abstract read
In one paragraph

Article in BMC pulmonary medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 pooled it
–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

21 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Review
  5. Hospitalization Outcomes of Patients with Asthma, COPD, and Asthma-COPD Overlap Syndrome.Chronic obstructive pulmonary diseases (Miami, Fla.) · 2025
    Article
  6. COVID-19 and Long-term Risk of Ischemic Heart Disease in Asthma.Allergy, asthma & immunology research · 2025
    Article
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  16. Article
  17. Observational
  18. Fungal Diseases in Taiwan-National Insurance Data and Estimation.Journal of fungi (Basel, Switzerland) · 2019
    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

8 authors.

Sumitra ShantakumarR&D, Real World Evidence & Epidemiology, GSK, 50 Beach Road, #21-00 Gateway West, Singapore, 189720, Singapore.
Raoh-Fang PwuHealth Data Research Center, National Taiwan University, No.33, Linsen South Road, Suite 526, Taipei, 10051, Taiwan.
Liesel D'SilvaNational Respiratory Physician Lead, GSK, 7333 Mississauga Road, Mississauga, ON, L5N 6L4, Canada.
Keele WurstR&D, Real World Evidence & Epidemiology, GSK, 1250 South Collegeville Road, Collegeville, PA, 19426, USA.
Yao-Wen KuoNational Taiwan University Hospital, No.7, Zhongshan S. Road, Zhongzheng District, Taipei City, 10002, Taiwan.
Yen-Yun YangHealth Data Research Center, National Taiwan University, No.33, Linsen South Road, Suite 526, Taipei, 10051, Taiwan.
Yi-Chen JuanHealth Data Research Center, National Taiwan University, No.33, Linsen South Road, Suite 526, Taipei, 10051, Taiwan. d49306002@ym.edu.tw.
K Arnold ChanHealth Data Research Center, National Taiwan University, No.33, Linsen South Road, Suite 526, Taipei, 10051, Taiwan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPatients with symptoms of both asthma and chronic obstructive pulmonary disease (COPD) may be classified with the term asthma-COPD overlap (ACO). ACO is of considerable interest as it is currently poorly characterised and has been associated with worse health outcomes and higher healthcare costs compared with COPD or asthma alone. Patients with ACO in Asia remain poorly described, and there is limited information regarding their resource utilisation compared with patients with asthma or COPD only. This study investigated the characteristics, disease burden and medical resource utilisation of patients with ACO in Taiwan.

methodsThis was a retrospective cohort study of patients identified from National Health Insurance (NHI) claims data in Taiwan in 2009-2011. Patients were classified into incident ACO, COPD or asthma cohorts according to International Classification of Disease, ninth revision, clinical modification codes in claims. Eligible patients were ≥40 years of age with 12 months' continuous enrolment in the NHI programme pre- and post-index date (date of the first relevant medical claim).

resultsPatients with ACO (N = 22,328) and COPD (N = 69,648) were older and more likely to be male than those with asthma (N = 50,293). Patients with ACO had more comorbidities and exacerbations, with higher medication use: short-acting β

conclusionsPatients with ACO in Taiwan experience a greater disease burden with greater healthcare resource utilisation, and higher costs, than patients with asthma or COPD alone.

Indexed as

Adrenal Cortex HormonesAdrenergic beta-2 Receptor AgonistsAgedAged, 80 and overAge FactorsAmbulatory CareAsthmaDrug CostsFemaleHealth ResourcesHospitalizationHumansMaleMiddle AgedPulmonary Disease, Chronic ObstructiveRetrospective StudiesAdrenal Cortex HormonesAdrenergic beta-2 Receptor AgonistsAsthmaAsthma-chronic obstructive pulmonary disease overlapChronic obstructive pulmonary diseaseEpidemiologyMedical resource utilisationTaiwan

Identifiers

PMID29368608
PMCPMC5784537

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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.