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Validation of “Montreal Cognitive Assessment (MoCA) and Addenbrooke’s Cognitive Examination III (ACE-III) ” as a cognitive screening tools for the hearing impaired.
Hearing loss is very common in older adults and leads to further problems with communication. As a result, hearing impaired older adults can suffer from loneliness and isolation and have a higher risk of developing dementia. Communication problems that are caused by a hearing loss can also affect results of cognitive testing.The main aim of this study is to assess a special version of two tests that are widely used to identify cognitive problems, the MoCA and ACE. These tests are used to identify people at risk of cognitive problems in old age. We want to know whether they can reliably identify people with hearing loss . We also want to find out what are the best test scores that will help us to do this. We will recruit 90 subjects aged over 65 years with hearing loss, and with normal cognition (N=30), mild cognitive impairment (N=30) and dementia (N=30). They will all have a battery of audiological and cognitive tests and questionnaires. We will use ROC analysis to identify optimal cut-off points for the MoCA and ACE tests in order to diagnose cognitive impairments in hearing impaired older adults and determine diagnostic accuracy metrics of sensitivity, specificity, positive and negative predictive value. Concurrent validity of MoCA and ACE-III tests with each other and the other non-verbal tests of cognitive function will be assessed through use of Pearson or Spearman’s correlations (depending on data characteristics) .
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