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Early COPD patients with lung hyperinflation associated with poorer lung function but better bronchodilator responsiveness

Overview of attention for article published in International Journal of Chronic Obstructive Pulmonary Disease, October 2016
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About this Attention Score

  • Good Attention Score compared to outputs of the same age (68th percentile)
  • Good Attention Score compared to outputs of the same age and source (70th percentile)

Mentioned by

twitter
6 tweeters
facebook
3 Facebook pages

Citations

dimensions_citation
6 Dimensions

Readers on

mendeley
5 Mendeley
Title
Early COPD patients with lung hyperinflation associated with poorer lung function but better bronchodilator responsiveness
Published in
International Journal of Chronic Obstructive Pulmonary Disease, October 2016
DOI 10.2147/copd.s110021
Pubmed ID
Authors

Chunlan Chen, Wenhua Jian, Yi Gao, Yanqing Xie, Yan Song, Jinping Zheng

Abstract

It is unknown whether aggressive medication strategies should be used for early COPD with or without lung hyperinflation. We aimed to explore the characteristics and bronchodilator responsiveness of early COPD patients (stages I and II) with/without lung hyperinflation. Four hundred and six patients with COPD who performed both lung volume and bronchodilation tests were retrospectively analyzed. Residual volume to total lung capacity >120% of predicted values indicated lung hyperinflation. The characteristics and bronchodilator responsiveness were compared between the patients with and without lung hyperinflation across all stages of COPD. The percentages of patients with lung hyperinflation were 72.7% in the entire cohort, 19.4% in stage I, 68.5% in stage II, 95.3% in stage III, and 100.0% in stage IV. The patients with lung hyperinflation exhibited poorer lung function but better bronchodilator responsiveness of both forced expiratory volume in 1 second and forced vital capacity than those without lung hyperinflation during early COPD (t=2.21-5.70, P=0.000-0.029), especially in stage I, while age, body mass index, smoking status, smoking history, and disease duration were similar between the two subgroups in the same stages. From stages I to IV of subgroups with lung hyperinflation, stage I patients had the best bronchodilator responsiveness. Use of bronchodilator responsiveness of forced vital capacity to detect the presence of lung hyperinflation in COPD patients showed relatively high sensitivities (69.5%-75.3%) and specificities (70.3%-75.7%). We demonstrated the novel finding that early COPD patients with lung hyperinflation are associated with poorer lung function but better bronchodilator responsiveness and established a simple method for detecting lung hyperinflation.

Twitter Demographics

The data shown below were collected from the profiles of 6 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 5 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 5 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 3 60%
Student > Bachelor 1 20%
Student > Doctoral Student 1 20%
Readers by discipline Count As %
Medicine and Dentistry 3 60%
Nursing and Health Professions 1 20%
Environmental Science 1 20%

Attention Score in Context

This research output has an Altmetric Attention Score of 4. 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 August 2017.
All research outputs
#2,959,754
of 11,614,551 outputs
Outputs from International Journal of Chronic Obstructive Pulmonary Disease
#371
of 1,359 outputs
Outputs of similar age
#81,261
of 260,787 outputs
Outputs of similar age from International Journal of Chronic Obstructive Pulmonary Disease
#25
of 92 outputs
Altmetric has tracked 11,614,551 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 1,359 research outputs from this source. They receive a mean Attention Score of 4.7. This one has gotten more attention than average, scoring higher than 72% 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 260,787 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 68% of its contemporaries.
We're also able to compare this research output to 92 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 70% of its contemporaries.