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Adaptation and validation of the Charlson Index for Read/OXMIS coded databases

Overview of attention for article published in BMC Primary Care, January 2010
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Title
Adaptation and validation of the Charlson Index for Read/OXMIS coded databases
Published in
BMC Primary Care, January 2010
DOI 10.1186/1471-2296-11-1
Pubmed ID
Authors

Nada F Khan, Rafael Perera, Stephen Harper, Peter W Rose

Abstract

The Charlson comorbidity index is widely used in ICD-9 administrative data, however, there is no translation for Read/OXMIS coded data despite increasing use of the General Practice Research Database (GPRD). Our main objective was to translate the Charlson index for use with Read/OXMIS coded data such as the GPRD and test its association with mortality. We also aimed to provide a version of the comorbidity index for other researchers using similar datasets.

X Demographics

X Demographics

The data shown below were collected from the profiles of 2 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 185 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 4 2%
Brazil 1 <1%
Switzerland 1 <1%
Denmark 1 <1%
United States 1 <1%
Unknown 177 96%

Demographic breakdown

Readers by professional status Count As %
Researcher 66 36%
Student > Ph. D. Student 32 17%
Other 12 6%
Student > Postgraduate 8 4%
Student > Master 8 4%
Other 35 19%
Unknown 24 13%
Readers by discipline Count As %
Medicine and Dentistry 94 51%
Pharmacology, Toxicology and Pharmaceutical Science 8 4%
Computer Science 6 3%
Economics, Econometrics and Finance 5 3%
Nursing and Health Professions 5 3%
Other 23 12%
Unknown 44 24%
Attention Score in Context

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 08 April 2019.
All research outputs
#19,968,026
of 25,402,889 outputs
Outputs from BMC Primary Care
#1,892
of 2,362 outputs
Outputs of similar age
#159,001
of 173,150 outputs
Outputs of similar age from BMC Primary Care
#8
of 10 outputs
Altmetric has tracked 25,402,889 research outputs across all sources so far. This one is in the 18th percentile – i.e., 18% of other outputs scored the same or lower than it.
So far Altmetric has tracked 2,362 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 7.7. This one is in the 17th percentile – i.e., 17% 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 173,150 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 7th percentile – i.e., 7% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 10 others from the same source and published within six weeks on either side of this one. This one has scored higher than 2 of them.