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Determinants of chronic obstructive pulmonary disease severity in the late-elderly differ from those in younger patients

Overview of attention for article published in BMC Research Notes, January 2016
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3 tweeters

Citations

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20 Dimensions

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35 Mendeley
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Title
Determinants of chronic obstructive pulmonary disease severity in the late-elderly differ from those in younger patients
Published in
BMC Research Notes, January 2016
DOI 10.1186/s13104-015-1810-8
Pubmed ID
Authors

Mizuha Haraguchi, Hidetoshi Nakamura, Mamoru Sasaki, Masaki Miyazaki, Shotaro Chubachi, Saeko Takahashi, Koichiro Asano, Paul W. Jones, Tomoko Betsuyaku

Abstract

Although the age range of chronic obstructive pulmonary disease (COPD) patients is broad, few studies have focused on the effects of age on disease characteristics. Keio University and affiliated hospitals established an observational COPD cohort. Patients were assessed using high resolution computed tomography (CT) to quantify emphysema, health status using the COPD assessment test (CAT) and the St. George's Respiratory Questionnaire (SGRQ), spirometry, echocardiogram, dual X-ray absorption of bone, biomarkers and comorbid diagnoses. We examined the characteristics of COPD patients aged 75 and over compared with patients below 75. A total of 443 patients comprising 252 patients aged <75 years and 191 patients aged ≥75 years, were enrolled. Emphysematous changes on CT and prevalence of possible pulmonary hypertension were greater in late-elderly patients. The slope of the relationship between CT emphysema densitometry score and forced expiratory volume in 1 s was significantly less steep in the late-elderly than the younger patients (p = 0.002). CAT and total SGRQ scores and the frequency of long-term oxygen therapy were significantly higher in the late-elderly with moderate airflow obstruction compared to those of the younger in the same grade, although the opposite was seen in late-elderly patients with very severe airflow obstruction. Hypertension, aortic aneurysm, prostatic hypertrophy, anemia, and cataract are more prevalent in late-elderly patients. Elderly COPD patients show a varied age-related pattern of disease that warrants specific attention in clinical practice above and beyond assessment of airflow limitation. Trial registration Clinical trial registered with the University Hospital Medical Information Network (UMIN000003470, April 10, 2010).

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 35 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 1 3%
Unknown 34 97%

Demographic breakdown

Readers by professional status Count As %
Student > Master 5 14%
Student > Bachelor 3 9%
Other 2 6%
Student > Postgraduate 2 6%
Professor > Associate Professor 2 6%
Other 6 17%
Unknown 15 43%
Readers by discipline Count As %
Medicine and Dentistry 13 37%
Economics, Econometrics and Finance 2 6%
Psychology 2 6%
Nursing and Health Professions 1 3%
Engineering 1 3%
Other 0 0%
Unknown 16 46%

Attention Score in Context

This research output has an Altmetric Attention Score of 2. 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 06 February 2016.
All research outputs
#3,344,155
of 7,108,255 outputs
Outputs from BMC Research Notes
#828
of 1,850 outputs
Outputs of similar age
#144,328
of 304,915 outputs
Outputs of similar age from BMC Research Notes
#67
of 160 outputs
Altmetric has tracked 7,108,255 research outputs across all sources so far. This one has received more attention than most of these and is in the 50th percentile.
So far Altmetric has tracked 1,850 research outputs from this source. They receive a mean Attention Score of 4.3. This one has gotten more attention than average, scoring higher than 51% 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 304,915 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 48th percentile – i.e., 48% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 160 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.