![]() ![]() Submitted comments are subject to editing and editor review prior to posting.Read any comments already posted on the article prior to submission. Submit only on articles published within 6 months of issue date.(Exception: original author replies can include all original authors of the article) Submissions should not have more than 5 authors.Reference 1 must be the article on which you are commenting. ![]() Submissions must be You (and co-authors) do not need to fill out forms or check disclosures as author forms are still valid If you are responding to a comment that was written about an article you originally authored: Your co-authors must send a completed Publishing Agreement Form to Neurology Staff (not necessary for the lead/corresponding author as the form below will suffice) before you upload your comment. You must have updated your disclosures within six months: If you are uploading a letter concerning an article: However, sensitivity for detecting very mild dementia was poor.Ĭonclusion: Although the clock drawing test can be scored reliably and can differentiate cognitively normal older adults from those with at least mild dementia of the Alzheimer type, it does not appear to be a useful screening instrument for detecting very mild dementia. Sensitivity and specificity analyses revealed that all methods could distinguish between normal aging and dementia of at least mild severity. Analyses of variance revealed that although those with mild or moderate/severe dementia performed significantly worse on the clock drawing test than did individuals who had very mild dementia or who were cognitively normal, the latter two groups did not differ significantly. Someone who may have dementia is asked to draw a clock showing the time as 10 minutes past 11. Spearman correlations indicated that as dementia severity increased, clock drawing performance decreased. Inter-rater reliability was consistently high. Results: The same pattern of results was obtained for all six scoring methods. Each clock drawing later was judged blindly and independently by two raters according to six commonly used sets of scoring criteria. Can remember a short list of words, follow instructions and do simple calculations. Knows the date, time, and where he or she is. Such tests give an overall sense of whether a person: Is aware of symptoms. Methods: Clock drawings were obtained during the initial clinical assessments of 75 participants in a longitudinal study of healthy aging and dementia of the Alzheimer type (15 cognitively normal, 25 with very mild dementia, 21 with mild dementia, and 14 with moderate to severe dementia, as staged by the Clinical Dementia Rating). Mental status testing evaluates memory, ability to solve simple problems and other thinking skills. Objective: To determine whether performance on the clock drawing test varies as a function of dementia severity and particularly whether it differentiates cognitively normal older adults from those with very mild dementia. ![]()
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