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The phenotype of concurrent chronic bronchitis and frequent exacerbations in patients with severe COPD attending Swedish secondary care units

Overview of attention for article published in International Journal of Chronic Obstructive Pulmonary Disease, October 2015
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About this Attention Score

  • Good Attention Score compared to outputs of the same age (74th percentile)
  • Good Attention Score compared to outputs of the same age and source (67th percentile)

Mentioned by

twitter
9 tweeters
googleplus
1 Google+ user

Citations

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23 Dimensions

Readers on

mendeley
44 Mendeley
Title
The phenotype of concurrent chronic bronchitis and frequent exacerbations in patients with severe COPD attending Swedish secondary care units
Published in
International Journal of Chronic Obstructive Pulmonary Disease, October 2015
DOI 10.2147/copd.s91362
Pubmed ID
Authors

Josefin Sundh, Gunnar Johansson, Kjell Larsson, Anders Lindén, Claes-Göran Löfdahl, Thomas Sandström, Christer Janson

Abstract

Chronic bronchitis and previous exacerbations are both well-known risk factors for new exacerbations, impaired health-related quality of life, and increased mortality in COPD. The aim of the study was to characterize the phenotype of concurrent chronic bronchitis and frequent exacerbation in severe COPD. Information on patient characteristics, comorbidity, and exacerbations from the previous year (total number and number requiring hospitalization) was collected from 373 patients with stage III and IV COPD attending 27 secondary care respiratory units in Sweden. Logistic regression used chronic bronchitis and frequent exacerbations (≥2 exacerbations or ≥1 hospitalized exacerbations in the previous year) as response variables. Stratification and interaction analyses examined effect modification by sex. Chronic bronchitis was associated with current smoking (adjusted odds ratio [OR] [95% CI], 2.75 [1.54-4.91]; P=0.001), frequent exacerbations (OR [95% CI], 1.93 [1.24-3.01]; P=0.004), and musculoskeletal symptoms (OR [95% CI], 1.74 [1.05-2.86]; P=0.031), while frequent exacerbations were associated with lung function (forced expiratory volume in 1 second as a percentage of predicted value [FEV1% pred]) (OR [95% CI] 0.96 [0.94-0.98]; P=0.001) and chronic bronchitis (OR [95% CI] 1.73 [1.11-2.68]; P=0.015). The phenotype with both chronic bronchitis and frequent exacerbations was associated with FEV1% pred (OR [95% CI] 0.95 [0.92-0.98]; P=0.002) and musculoskeletal symptoms (OR [95% CI] 2.55 [1.31-4.99]; P=0.006). The association of smoking with the phenotype of chronic bronchitis and exacerbations was stronger in women than in men (interaction, P=0.040). Musculoskeletal symptoms and low lung function are associated with the phenotype of combined chronic bronchitis and frequent exacerbations in severe COPD. In women, current smoking is of specific importance for this phenotype. This should be considered in clinical COPD care.

Twitter Demographics

The data shown below were collected from the profiles of 9 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 44 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 2 5%
Sweden 1 2%
Unknown 41 93%

Demographic breakdown

Readers by professional status Count As %
Other 8 18%
Student > Master 7 16%
Researcher 7 16%
Student > Postgraduate 4 9%
Student > Doctoral Student 3 7%
Other 9 20%
Unknown 6 14%
Readers by discipline Count As %
Medicine and Dentistry 17 39%
Nursing and Health Professions 5 11%
Pharmacology, Toxicology and Pharmaceutical Science 4 9%
Computer Science 3 7%
Agricultural and Biological Sciences 1 2%
Other 6 14%
Unknown 8 18%

Attention Score in Context

This research output has an Altmetric Attention Score of 6. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 15 January 2016.
All research outputs
#5,725,989
of 22,831,537 outputs
Outputs from International Journal of Chronic Obstructive Pulmonary Disease
#625
of 2,353 outputs
Outputs of similar age
#69,124
of 274,922 outputs
Outputs of similar age from International Journal of Chronic Obstructive Pulmonary Disease
#28
of 87 outputs
Altmetric has tracked 22,831,537 research outputs across all sources so far. This one has received more attention than most of these and is in the 74th percentile.
So far Altmetric has tracked 2,353 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.3. This one has gotten more attention than average, scoring higher than 73% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 274,922 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 74% of its contemporaries.
We're also able to compare this research output to 87 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 67% of its contemporaries.