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| Title |
Clinical implications of blood eosinophil count in patients with non-asthma–COPD overlap syndrome COPD
|
|---|---|
| Published in |
International Journal of Chronic Obstructive Pulmonary Disease, August 2017
|
| DOI | 10.2147/copd.s129321 |
| Pubmed ID | |
| Authors |
Jin Hwa Song, Chang-Hoon Lee, Jin Woo Kim, Won-Yeon Lee, Ji Ye Jung, Joo Hun Park, Ki Suck Jung, Kwang Ha Yoo, Yong Bum Park, Deog Keom Kim |
| Abstract |
Recent studies that assessed the relevance of the blood eosinophil count as a biomarker in patients with COPD may have overestimated it because they included patients with asthma-COPD overlap syndrome (ACOS). We investigated the clinical implications of the blood eosinophil count in patients with non-ACOS COPD. From a Korean COPD Subtype Study (KOCOSS) cohort, we selected patients with non-ACOS COPD after excluding ACOS patients according to Spanish criteria. Clinical characteristics and the incidence of moderate-to-severe exacerbation were compared among the four groups stratified according to the quartiles of blood eosinophil percent and count. Of the KOCOSS cohort of 1,132 patients with COPD, 467 non-ACOS COPD patients (41.2%) with data of blood eosinophil count remained after excluding those with ACOS based on the Spanish definition. There was no difference in clinical characteristics among groups classified according to the quartiles of eosinophil percent and count. On multivariate logistic regression, eosinophil quartiles in percent and absolute count were not associated with the incidence of moderate-to-severe acute exacerbations of COPD (AECOPD). The eosinophil count did not affect the risk of AECOPD or forced expiratory volume in 1 second (FEV1) changes according to exposure to inhaled corticosteroid (ICS). However, by increasing the cutoff value for the eosinophil count from 200/μL to 600/μL, the odds ratio for risk of exacerbation increased serially from 0.82 to 2.96 on trend analysis. In patients with non-ACOS COPD, the blood eosinophil count and percent were not associated with FEV1 changes, quality of life (QoL), AECOPD frequency, or response to ICS. The clinical implication of the blood eosinophil count should not be overestimated in patients with non-ACOS COPD. |
X Demographics
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Spain | 6 | 22% |
| Grenada | 1 | 4% |
| Colombia | 1 | 4% |
| Unknown | 19 | 70% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 23 | 85% |
| Practitioners (doctors, other healthcare professionals) | 4 | 15% |
Mendeley readers
The data shown below were compiled from readership statistics for 34 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 34 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 7 | 21% |
| Other | 4 | 12% |
| Professor | 4 | 12% |
| Student > Master | 3 | 9% |
| Lecturer | 1 | 3% |
| Other | 4 | 12% |
| Unknown | 11 | 32% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 15 | 44% |
| Nursing and Health Professions | 2 | 6% |
| Immunology and Microbiology | 1 | 3% |
| Computer Science | 1 | 3% |
| Unknown | 15 | 44% |
Attention Score in Context
This research output has an Altmetric Attention Score of 18. 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 04 December 2018.
All research outputs
#2,007,914
of 25,382,440 outputs
Outputs from International Journal of Chronic Obstructive Pulmonary Disease
#166
of 2,578 outputs
Outputs of similar age
#37,951
of 327,503 outputs
Outputs of similar age from International Journal of Chronic Obstructive Pulmonary Disease
#4
of 78 outputs
Altmetric has tracked 25,382,440 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 92nd percentile: it's in the top 10% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 2,578 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.5. This one has done particularly well, scoring higher than 93% 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 327,503 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 88% of its contemporaries.
We're also able to compare this research output to 78 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 94% of its contemporaries.