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The chronic obstructive pulmonary disease assessment test improves the predictive value of previous exacerbations for poor outcomes in COPD

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

  • Good Attention Score compared to outputs of the same age (67th percentile)
  • Above-average Attention Score compared to outputs of the same age and source (55th percentile)

Mentioned by

twitter
3 tweeters
googleplus
1 Google+ user

Citations

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25 Dimensions

Readers on

mendeley
49 Mendeley
Title
The chronic obstructive pulmonary disease assessment test improves the predictive value of previous exacerbations for poor outcomes in COPD
Published in
International Journal of Chronic Obstructive Pulmonary Disease, November 2015
DOI 10.2147/copd.s91163
Pubmed ID
Authors

Marc Miravitlles, Patricia García-Sidro, Alonso Fernández-Nistal, María Jesús Buendía, María José Espinosa de los Monteros, Cristina Esquinas, Jesús Molina

Abstract

Chronic obstructive pulmonary disease (COPD) exacerbations have a negative impact on the quality of life of patients and the evolution of the disease. We have investigated the prognostic value of several health-related quality of life questionnaires to predict the appearance of a composite event (new ambulatory or emergency exacerbation, hospitalization, or death) over a 1-year follow-up. This was a multicenter, prospective, observational study. Patients completed four questionnaires after recovering from an exacerbation (COPD Assessment Test [CAT], a Clinical COPD Questionnaire [CCQ], COPD Severity Score [COPDSS], and Airways Questionnaire [AQ20]). Patients were followed-up until the appearance of the composite event or for 1 year, whichever came first. A total of 497 patients were included in the study. The majority of them were men (89.7%), with a mean age of 68.7 (SD 9.2) years, and a forced expiratory volume in 1 second of 47.1% (SD 17.5%). A total of 303 (61%) patients experienced a composite event. Patients with an event had worse mean scores of all questionnaires at baseline compared to patients without event: CAT=12.5 vs 11.3 (P=0.028); CCQ=2.2 vs 1.9 (P=0.013); COPDSS=12.3 vs 10.9 (P=0.001); AQ20=8.3 vs 7.5 (P=0.048). In the multivariate analysis, only previous history of exacerbations and CAT score ≥13.5 were significant risk factors for the composite event. A CAT score ≥13.5 increased the predictive value of previous exacerbations with an area under the receiver operating characteristic curve of 0.864 (95% CI: 0.829-0.899; P=0.001). The predictive value of previous exacerbations significantly increased only in one of the four trialled questionnaires, namely in the CAT questionnaire. However, previous history of exacerbations was the strongest predictor of the composite event.

Twitter Demographics

The data shown below were collected from the profiles of 3 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 49 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 1 2%
Spain 1 2%
Unknown 47 96%

Demographic breakdown

Readers by professional status Count As %
Student > Master 9 18%
Researcher 6 12%
Student > Doctoral Student 5 10%
Student > Bachelor 5 10%
Student > Postgraduate 4 8%
Other 10 20%
Unknown 10 20%
Readers by discipline Count As %
Medicine and Dentistry 24 49%
Nursing and Health Professions 6 12%
Pharmacology, Toxicology and Pharmaceutical Science 4 8%
Chemistry 2 4%
Economics, Econometrics and Finance 1 2%
Other 2 4%
Unknown 10 20%

Attention Score in Context

This research output has an Altmetric Attention Score of 3. 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 23 December 2015.
All research outputs
#2,417,811
of 6,818,838 outputs
Outputs from International Journal of Chronic Obstructive Pulmonary Disease
#269
of 836 outputs
Outputs of similar age
#89,485
of 280,515 outputs
Outputs of similar age from International Journal of Chronic Obstructive Pulmonary Disease
#23
of 59 outputs
Altmetric has tracked 6,818,838 research outputs across all sources so far. This one has received more attention than most of these and is in the 63rd percentile.
So far Altmetric has tracked 836 research outputs from this source. They receive a mean Attention Score of 3.5. This one has gotten more attention than average, scoring higher than 65% 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 280,515 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 67% of its contemporaries.
We're also able to compare this research output to 59 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 55% of its contemporaries.