Key result
A weighted scoring system of the 9 domains in the CASI C-2.0, particularly combining short-term memory and orientation, was more effective than the total score in screening for dementia.
Why the study?
Does a weighted scoring system improve the effectiveness of the CASI C-2.0 in screening for dementia compared to the total score?
Observational
Does a weighted scoring system improve the effectiveness of the CASI C-2.0 in screening for dementia compared to the total score?
A weighted scoring system focusing on short-term memory and orientation improves the dementia screening effectiveness of the CASI C-2.0 compared to the standard total score.
Answers are grounded in this paper and cite their sources.
May enhance CASI C-2.0 dementia screening; leaves open validation before practice change.
The purpose of this study was to find means to increase the power of the Cognitive Abilities Screening Instrument, Chinese version (CASI C-2.0) in the screening of dementia. In assessing the performance of the CASI in dementia screening, it is a common practice to determine a cutoff score for the total CASI score and report the respective sensitivity and specificity. In this paper, we showed that an alternative scoring system, i.e., a weighted sum of the scores from the 9 domains in the CASI C-2.0, may improve its effectiveness in screening. In particular, short-term memory and orientation appeared to be the 2 most relevant domains and their combined score was shown to be more effective than the total score in screening dementia. We also showed that such a scoring system could be kept the same across examinees with different demographic backgrounds. With the weighted scoring system of the 9 domains for patients from the targeted population, we hope to make the CASI a clinically more powerful tool in screening dementia.
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Tsai et al. (2004) conducted an observational in Dementia. Weighted scoring system of the 9 domains in the CASI C-2.0 vs. Total CASI score was evaluated on Effectiveness in screening dementia. A weighted scoring system of the 9 domains in the CASI C-2.0, particularly combining short-term memory and orientation, was more effective than the total score in screening for dementia.
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