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Inter‐rater reliability of the International Cooperative Ataxia Rating Scale (ICARS)

Overview of attention for article published in Movement Disorders, November 2003
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Title
Inter‐rater reliability of the International Cooperative Ataxia Rating Scale (ICARS)
Published in
Movement Disorders, November 2003
DOI 10.1002/mds.10657
Pubmed ID
Authors

Elsdon Storey, Kate Tuck, Robert Hester, Andrew Hughes, Andrew Churchyard

Abstract

We assessed the inter-rater reliability of the 100-point International Cooperative Ataxia Rating Scale (ICARS). Three neurologists independently rated videotaped ICARS examinations of 22 subjects with genetically determined ataxias (spinocerebellar ataxia [SCA] Type 1 in 11; SCA Type 2 in 1; Friedreich's ataxia in 10) and 4 controls. Scores on live ICARS assessment had ranged from 0 to 7 for controls and 11 to 74 for ataxic subjects (clinically very mildly affected to wheelchair-bound). Inter-rater correlation was very high for the total score (Kendall's omega 0.994, 95% confidence interval, 0.988-0.997), and high to very high for each component subscore (0.791 for speech to 0.994 for posture/gait). All correlations were significant at P < 0.00001. The ICARS exhibits very high inter-rater reliability even without prior observer standardisation and is sensitive to a range of ataxia severities from very mild to severe.

Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 145 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 2 1%
Germany 1 <1%
Netherlands 1 <1%
Brazil 1 <1%
Korea, Republic of 1 <1%
Spain 1 <1%
Sweden 1 <1%
Unknown 137 94%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 26 18%
Researcher 23 16%
Student > Master 19 13%
Student > Postgraduate 12 8%
Student > Bachelor 10 7%
Other 37 26%
Unknown 18 12%
Readers by discipline Count As %
Medicine and Dentistry 64 44%
Neuroscience 15 10%
Nursing and Health Professions 10 7%
Psychology 8 6%
Engineering 6 4%
Other 16 11%
Unknown 26 18%
Attention Score in Context

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 08 May 2012.
All research outputs
#8,300,669
of 24,833,004 outputs
Outputs from Movement Disorders
#2,633
of 4,999 outputs
Outputs of similar age
#35,713
of 141,450 outputs
Outputs of similar age from Movement Disorders
#4
of 12 outputs
Altmetric has tracked 24,833,004 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 4,999 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 10.6. This one is in the 32nd percentile – i.e., 32% 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 141,450 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 16th percentile – i.e., 16% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 12 others from the same source and published within six weeks on either side of this one. This one is in the 8th percentile – i.e., 8% of its contemporaries scored the same or lower than it.