| Title |
Causes of death in patients with asthma and asthma–chronic obstructive pulmonary disease overlap syndrome
|
|---|---|
| Published in |
International Journal of Chronic Obstructive Pulmonary Disease, March 2015
|
| DOI | 10.2147/copd.s77491 |
| Pubmed ID | |
| Authors |
Tomoya Harada, Akira Yamasaki, Takehito Fukushima, Kiyoshi Hashimoto, Miki Takata, Masahiro Kodani, Ryota Okazaki, Kenichi Takeda, Masanari Watanabe, Jun Kurai, Eiji Shimizu |
| Abstract |
The administration of inhaled corticosteroids and worldwide usage of several asthma guidelines have improved asthma mortality. Elderly patients with asthma show high mortality rates, and may have several comorbidities, including overlap with chronic obstructive pulmonary disease (COPD). Among patients showing asthma overlapped with COPD (asthma-COPD overlap syndrome; ACOS), mortality is worse than for asthma alone. Therefore, we investigated comorbidities, malignancies, and causes of death in patients with asthma and ACOS. This was a retrospective study. From January 2000 to March 2012, 650 patients were followed up at Tottori University Hospital. Medical records were reviewed to collect data regarding patient characteristics and comorbidities, and causes of death were recorded for patients who died during the study period. Eighty-seven patients died during the study period. The most frequent cause of death was malignancy. The proportion of malignant disease was 21.7% in all patients, 19.4% in patients with asthma alone, and 32.4% in patients with ACOS. One patient died from an asthma attack during this period. The most frequent cause of death in patients with asthma and ACOS was malignant disease. It is necessary to control not only asthma but also comorbidities in patients with asthma, especially in those with ACOS. |
X Demographics
The data shown below were collected from the profiles of 3 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 3 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 3 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 62 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 1 | 2% |
| Unknown | 61 | 98% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 14 | 23% |
| Student > Master | 8 | 13% |
| Student > Ph. D. Student | 7 | 11% |
| Researcher | 5 | 8% |
| Professor > Associate Professor | 4 | 6% |
| Other | 12 | 19% |
| Unknown | 12 | 19% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 26 | 42% |
| Pharmacology, Toxicology and Pharmaceutical Science | 7 | 11% |
| Agricultural and Biological Sciences | 3 | 5% |
| Computer Science | 3 | 5% |
| Unspecified | 2 | 3% |
| Other | 5 | 8% |
| Unknown | 16 | 26% |
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 24 August 2021.
All research outputs
#8,535,472
of 25,374,917 outputs
Outputs from International Journal of Chronic Obstructive Pulmonary Disease
#1,053
of 2,577 outputs
Outputs of similar age
#93,785
of 270,996 outputs
Outputs of similar age from International Journal of Chronic Obstructive Pulmonary Disease
#10
of 30 outputs
Altmetric has tracked 25,374,917 research outputs across all sources so far. This one is in the 43rd percentile – i.e., 43% of other outputs scored the same or lower than it.
So far Altmetric has tracked 2,577 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 gotten more attention than average, scoring higher than 54% 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 270,996 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 54% of its contemporaries.
We're also able to compare this research output to 30 others from the same source and published within six weeks on either side of this one. This one is in the 46th percentile – i.e., 46% of its contemporaries scored the same or lower than it.