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COPD exacerbations associated with the modified Medical Research Council scale and COPD assessment test among Humana Medicare members

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

  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (87th percentile)
  • High Attention Score compared to outputs of the same age and source (89th percentile)

Mentioned by

news
1 news outlet
twitter
4 tweeters

Citations

dimensions_citation
7 Dimensions

Readers on

mendeley
32 Mendeley
Title
COPD exacerbations associated with the modified Medical Research Council scale and COPD assessment test among Humana Medicare members
Published in
International Journal of Chronic Obstructive Pulmonary Disease, January 2016
DOI 10.2147/copd.s94323
Pubmed ID
Authors

Margaret K Pasquale, Yihua Xu, Christine L. Baker, Kelly H. Zou, John G. Teeter, Andrew M. Renda, Cralen Davis, Theodore C. Lee, Joel Bobula

Abstract

The Global initiative for chronic Obstructive Lung Disease guidelines recommend assessment of COPD severity, which includes symptomatology using the modified Medical Research Council (mMRC) or COPD assessment test (CAT) score in addition to the degree of airflow obstruction and exacerbation history. While there is great interest in incorporating symptomatology, little is known about how patient reported symptoms are associated with future exacerbations and exacerbation-related costs. The mMRC and CAT were mailed to a randomly selected sample of 4,000 Medicare members aged >40 years, diagnosed with COPD (≥2 encounters with International Classification of Dis eases-9th Edition Clinical Modification: 491.xx, 492.xx, 496.xx, ≥30 days apart). The exacerbations and exacerbation-related costs were collected from claims data during 365-day post-survey after exclusion of members lost to follow-up or with cancer, organ transplant, or pregnancy. A logistic regression model estimated the predictive value of exacerbation history and symptomatology on exacerbations during follow-up, and a generalized linear model with log link and gamma distribution estimated the predictive value of exacerbation history and symptomatology on exacerbation-related costs. Among a total of 1,159 members who returned the survey, a 66% (765) completion rate was observed. Mean (standard deviation) age among survey completers was 72.0 (8.3), 53.7% female and 91.2% white. Odds ratios for having post-index exacerbations were 3.06, 4.55, and 16.28 times for members with 1, 2, and ≥3 pre-index exacerbations, respectively, relative to members with 0 pre-index exacerbations (P<0.001 for all). The odds ratio for high vs low symptoms using CAT was 2.51 (P<0.001). Similarly, exacerbation-related costs were 73% higher with each incremental pre-index exacerbation, and over four fold higher for high-vs low-symptom patients using CAT (each P<0.001). The symptoms using mMRC were not statistically significant in either model (P>0.10). The patient-reported symptoms contribute important information related to future COPD exacerbations and exacerbation-related costs beyond that explained by exacerbation history.

Twitter Demographics

The data shown below were collected from the profiles of 4 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 32 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Canada 1 3%
Unknown 31 97%

Demographic breakdown

Readers by professional status Count As %
Student > Doctoral Student 6 19%
Other 5 16%
Researcher 5 16%
Professor > Associate Professor 2 6%
Student > Ph. D. Student 2 6%
Other 5 16%
Unknown 7 22%
Readers by discipline Count As %
Medicine and Dentistry 11 34%
Nursing and Health Professions 3 9%
Social Sciences 3 9%
Computer Science 2 6%
Economics, Econometrics and Finance 1 3%
Other 1 3%
Unknown 11 34%

Attention Score in Context

This research output has an Altmetric Attention Score of 11. 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 13 April 2018.
All research outputs
#1,294,305
of 12,802,184 outputs
Outputs from International Journal of Chronic Obstructive Pulmonary Disease
#170
of 1,563 outputs
Outputs of similar age
#43,372
of 357,835 outputs
Outputs of similar age from International Journal of Chronic Obstructive Pulmonary Disease
#6
of 57 outputs
Altmetric has tracked 12,802,184 research outputs across all sources so far. Compared to these this one has done well and is in the 89th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 1,563 research outputs from this source. They receive a mean Attention Score of 5.0. This one has done well, scoring higher than 88% 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 357,835 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 87% of its contemporaries.
We're also able to compare this research output to 57 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 89% of its contemporaries.