Evidence map›Paper›PMID 24876173›Full record

ArticleThe European respiratory journal2014

The clinical and genetic features of COPD-asthma overlap syndrome.

Megan Hardin, Michael Cho, Merry-Lynn McDonald, Terri Beaty, Joe Ramsdell, Surya Bhatt, Edwin J R van Beek, Barry J Make, James D Crapo, Edwin K Silverman and 1 more

Abstract read
In one paragraph

Article in The European respiratory journal, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 137 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
137citing papers in PubMed, 6 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

137 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
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  5. Blood eosinophils and inhaled corticosteroids in patients with COPD: systematic review and meta-analysis.International journal of chronic obstructive pulmonary disease · 2018
    Pooled it
  6. Clinical characteristics of the asthma-COPD overlap syndrome--a systematic review.International journal of chronic obstructive pulmonary disease · 2015
    Pooled it
  7. Trial
  8. Article
  9. Review
  10. Article
  11. Article
  12. Genome-wide Association Study IdentifiesAllergy, asthma & immunology research · 2026
    Article
  13. Article
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77 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors.

Megan HardinChanning Division of Network Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA remeh@channing.harvard.edu.
Michael ChoChanning Division of Network Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
Merry-Lynn McDonaldChanning Division of Network Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
Terri BeatyDept of Epidemiology, Johns Hopkins University, Baltimore, MD, USA.
Joe RamsdellDept of Medicine, University of California San Diego, La Jolla, CA, USA.
Surya BhattDept of Pulmonary, Allergy and Critical Care Medicine, University of Alabama, Birmingham, AL, USA.
Edwin J R van BeekClinical Research Imaging Centre, University of Edinburgh, Edinburgh, UK.
Barry J MakeDept of Medicine, National Jewish Health, Denver, CO, USA.
James D CrapoDept of Medicine, National Jewish Health, Denver, CO, USA.
Edwin K SilvermanChanning Division of Network Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
Craig P HershChanning Division of Network Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.

Funding

Genetic Epidemiology of COPDU01HL089897 · NHLBI · NATIONAL JEWISH HEALTH · PI CRAPO, JAMES D · 2007 to 2021
$56.9M
Metabolomic signatures of empysema and COPD progression in the COPDGene cohortR01HL089897 · NHLBI · NATIONAL JEWISH HEALTH · PI CRAPO, JAMES D · 2012 to 2016
$31.1M
Genetic Epidemiology of COPDU01HL089856 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI SILVERMAN, EDWIN K · 2007 to 2021
$20.7M
(2 of 2) Genetic Epidemiology of COPDR01HL089856 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI SILVERMAN, EDWIN K · 2012 to 2016
$18.9M
The Genetic Epidemiology of Asthma in Costa RicaR37HL066289 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI WEISS, SCOTT T · 2007 to 2015
$14.6M
SYSTEMS APPROACHES TO THE EPIDEMIOLOGY, GENETICS AND GENOMICS OF LUNG DISEASEST32HL007427 · NHLBI · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI DAWN L DEMEO, Edwin K Silverman · 1985 to 2026
$13.6M
Statistical GeneticsP01HL083069 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI WEISS, SCOTT T · 2007 to 2011
$12.2M
LONG-TERM OXYGEN TREATMENT TRIAL (LOTT) PHARMACOGENOMICS ANCILLARY STUDYR01HL094635 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI HERSH, CRAIG P · 2009 to 2014
$2.2M
PHARMACOGENOMICS OF INHALED CORTICOSTEROIDS TO REDUCE COPD EXACERBATIONSR01NR013377 · NINR · BRIGHAM AND WOMEN'S HOSPITAL · PI HERSH, CRAIG P · 2011 to 2013
$1.5M
Smoking in Asthmatics Pilot StudyR34HL109482 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI RAMSDELL, JOE WESLEY · 2012 to 2014
$699k
NHLBI NIH HHS P01 HL083069NHLBI NIH HHS P01HL083069NHLBI NIH HHS R01 HL089856NHLBI NIH HHS R01HL089856NHLBI NIH HHS R01 HL089897NHLBI NIH HHS R01HL089897NHLBI NIH HHS R01 HL094635NHLBI NIH HHS R01HL094635NHLBI NIH HHS R34 HL109482NHLBI NIH HHS R37 HL066289NHLBI NIH HHS T32 HL007427NHLBI NIH HHS T32 HL007427-31NHLBI NIH HHS U01 HL089856NHLBI NIH HHS U01 HL089897NINR NIH HHS R01 NR013377NINR NIH HHS R01NR013377
6 · The paper itself

Abstract

Individuals with chronic obstructive pulmonary disease (COPD) and asthma are an important but poorly characterised group. The genetic determinants of COPD and asthma overlap have not been studied. The aim of this study was to identify clinical features and genetic risk factors for COPD and asthma overlap. Subjects were current or former smoking non-Hispanic whites or African-Americans with COPD. Overlap subjects reported a history of physician-diagnosed asthma before the age of 40 years. We compared clinical and radiographic features between COPD and overlap subjects. We performed genome-wide association studies (GWAS) in the non-Hispanic whites and African-American populations, and combined these results in a meta-analysis. More females and African-Americans reported a history of asthma. Overlap subjects had more severe and more frequent respiratory exacerbations, less emphysema and greater airway wall thickness compared to subjects with COPD alone. The non-Hispanic white GWAS identified single nucleotide polymorphisms in the genes CSMD1 (rs11779254, p=1.57 × 10(-6)) and SOX5 (rs59569785, p=1.61 × 10(-6)) and the meta-analysis identified single nucleotide polymorphisms in the gene GPR65 (rs6574978, p=1.18 × 10(-7)) associated with COPD and asthma overlap. Overlap subjects have more exacerbations, less emphysema and more airway disease for any degree of lung function impairment compared to COPD alone. We identified novel genetic variants associated with this syndrome. COPD and asthma overlap is an important syndrome and may require distinct clinical management.

Indexed as

AdultAgedAged, 80 and overAsthmaBlack or African AmericanComorbidityEmphysemaFemaleForced Expiratory VolumeGenetic Predisposition to DiseaseGenetic VariationGenome-Wide Association StudyGenotypeHumansMaleMiddle Aged

Identifiers

PMID24876173
PMCPMC4154588

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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.