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Association between hospital case volume and mortality in non-elderly pneumonia patients stratified by severity: a retrospective cohort study

Overview of attention for article published in BMC Health Services Research, July 2014
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Mentioned by

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1 tweeter

Citations

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9 Dimensions

Readers on

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36 Mendeley

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Title
Association between hospital case volume and mortality in non-elderly pneumonia patients stratified by severity: a retrospective cohort study
Published in
BMC Health Services Research, July 2014
DOI 10.1186/1472-6963-14-302
Pubmed ID
25016477
Authors

Hiraku Kumamaru, Yusuke Tsugawa, Hiromasa Horiguchi, Kanako Kunishima Kumamaru, Hideki Hashimoto, Hideo Yasunaga

Abstract

The characteristics and aetiology of pneumonia in the non-elderly population is distinct from that in the elderly population. While a few studies have reported an inverse association between hospital case volume and clinical outcome in elderly pneumonia patients, the evidence is lacking in a younger population. In addition, the relationship between volume and outcome may be different in severe pneumonia cases than in mild cases. In this context, we tested two hypotheses: 1) non-elderly pneumonia patients treated at hospitals with larger case volume have better clinical outcome compared with those treated at lower case volume hospitals; 2) the volume-outcome relationship differs by the severity of the pneumonia.

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Twitter Demographics

The data shown below were collected from the profile of 1 tweeter 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 36 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Japan 1 3%
Portugal 1 3%
Unknown 34 94%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 10 28%
Professor > Associate Professor 7 19%
Researcher 4 11%
Other 3 8%
Student > Bachelor 2 6%
Other 7 19%
Unknown 3 8%
Readers by discipline Count As %
Medicine and Dentistry 21 58%
Nursing and Health Professions 3 8%
Social Sciences 2 6%
Economics, Econometrics and Finance 1 3%
Unspecified 1 3%
Other 2 6%
Unknown 6 17%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. 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 14 July 2014.
All research outputs
#2,251,251
of 4,022,308 outputs
Outputs from BMC Health Services Research
#1,257
of 1,862 outputs
Outputs of similar age
#53,799
of 100,816 outputs
Outputs of similar age from BMC Health Services Research
#86
of 113 outputs
Altmetric has tracked 4,022,308 research outputs across all sources so far. This one is in the 25th percentile – i.e., 25% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,862 research outputs from this source. They receive a mean Attention Score of 4.2. This one is in the 20th percentile – i.e., 20% of its peers scored the same or lower than it.
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 100,816 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 26th percentile – i.e., 26% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 113 others from the same source and published within six weeks on either side of this one. This one is in the 14th percentile – i.e., 14% of its contemporaries scored the same or lower than it.

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