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

Overview of attention for article published in BMC Family Practice, January 2010
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2 tweeters

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Title
Adaptation and validation of the Charlson Index for Read/OXMIS coded databases
Published in
BMC Family Practice, 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.

Twitter Demographics

The data shown below were collected from the profiles of 2 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 168 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 4 2%
Switzerland 1 <1%
Brazil 1 <1%
Denmark 1 <1%
United States 1 <1%
Unknown 160 95%

Demographic breakdown

Readers by professional status Count As %
Researcher 62 37%
Student > Ph. D. Student 32 19%
Student > Master 9 5%
Other 9 5%
Student > Postgraduate 8 5%
Other 32 19%
Unknown 16 10%
Readers by discipline Count As %
Medicine and Dentistry 87 52%
Pharmacology, Toxicology and Pharmaceutical Science 7 4%
Computer Science 6 4%
Nursing and Health Professions 4 2%
Economics, Econometrics and Finance 4 2%
Other 22 13%
Unknown 38 23%

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
#14,896,938
of 19,319,448 outputs
Outputs from BMC Family Practice
#1,443
of 1,817 outputs
Outputs of similar age
#98,747
of 143,154 outputs
Outputs of similar age from BMC Family Practice
#1
of 1 outputs
Altmetric has tracked 19,319,448 research outputs across all sources so far. This one is in the 19th percentile – i.e., 19% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,817 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 7.1. 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 143,154 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 27th percentile – i.e., 27% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 1 others from the same source and published within six weeks on either side of this one. This one has scored higher than all of them