Single cutoff scores with inherent simple education adjustment achieved screening purpose of mild cognitive impairment and dementia in Chinese older adults. Administration time is relatively short, and it has incorporated essential cognitive domains. The consistency decreased with older age and lower education level, and majority of misclassifications were false negatives.Ĭonclusion: HK-MoCA is a convenient screening tool to detect cognitive impairment. The accuracy of correctly classifying tested subjects into appropriate groups was 85.3% if single cutoff was used though the consistency between norm-derived cutoffs and expert diagnoses were only 59.0%, 54.2%, and 53.9% at 16th, 7th, and 2nd percentiles, respectively. However, age and education adjusted cutoff scores achieved high specificities at all levels of cognitive impairment with trade-off of sensitivities. In identifying cognitive impairment, the sensitivity and specificity were 0.932 and 0.723, respectively. To detect dementia, its sensitivity was 0.922, and specificity was 0.923. Results: Single cutoff score of HK-MoCA differentiated MCI from normal with sensitivity of 0.861 and specificity of 0.723. Comparison was made with the single cutoff scores validated in a local study with 21/22 for MCI and 18/19 for dementia. Norm-derived age and education adjusted cutoff scores were at 16th, 7th, and 2nd percentiles. The HK-MoCA total scores were evaluated using different cutoffs. Methods: Total scores of HK-MoCA were collected from 315 subjects (128 with dementia, 122 with mild cognitive impairment (MCI) and 65 normal) attending a public district hospital-based cognition clinic from 2012 to 2017. The prevalence of MCI among elderly subjects attending geriatric clubs in Cairo is 34.2% and 44.3% of healthy men and women, respectively.Ĭonclusion: Older age, female sex and less education are the independent risk factors for MCI among apparently healthy elderly subjects attending geriatric clubs in Cairo.Pui Yu Yeung, 1 LL Louise Wong, 2 Chun Chung Chan, 2 Cho Yiu Yung, 3 LM Jess Leung, 2 Yuen Yee Tam, 3 Lap Nin Tang, 3 Hiu Sze Li, 3 Mei Ling Lau 3ġDepartment of Medicine, Tung Wah Eastern Hospital, Causeway Bay, Hong Kong Special Administrative Region, People’s Republic of China 2Private Practice, Tsim Sha Tsui and Central, Hong Kong Special Administrative Region, People’s Republic of China 3Department of Medicine and Geriatrics, United Christian Hospital, Kwun Tong, Hong Kong Special Administrative Region, People’s Republic of Chinaĭepartment of Medicine, Tung Wah Eastern Hospital, 19 Eastern Hospital Road, Causeway Bay, Hong Kong Special Administrative Region, People’s Republic of Chinaīackground and Purpose: The study evaluated the performance between norm-derived age and education adjusted vs single cutoff scores of the Montreal Cognitive Assessment, Hong Kong version (HK-MoCA) in classifying cognitive impairment in Chinese older adults. In diagnosing mild cognitive impairment, the Arabic MoCA showed 92.3% sensitivity and 85.7% specificity. The internal consistency of the Arabic MoCA was good, yielding a Cronbach's α on the standardized items of 0.83. The mean change in Arabic MoCA scores from the first to second evaluation was 0.9 ± 2.5 points, and correlation between the two evaluations was high (correlation coefficient = 0.92, P < 0.001). Results: Test–retest reliability data of the Arabic MoCA were collected approximately 35.0 ± 17.6 days apart. These geriatric clubs were randomly selected from different regions in Cairo governorate. In stage II prevalence of MCI was estimated using Arabic MoCA among apparently healthy elderly attending geriatric clubs. Methods: In stage I reliability & validity of MoCA Arabic version were assessed in reference to Cambridge Cognitive Examination (CAMCOG). The second was to determine the prevalence of MCI among apparently healthy elderly people attending geriatric clubs in Cairo. The first aim of this study was to assess the reliability and validity of Montreal Cognitive Assessment (MoCA) Arabic version in MCI detection. Data on the prevalence and incidence of MCI varies greatly according to cultural difference. MCI is an important target for Alzheimer's dementia prevention studies. Aim: Mild cognitive impairment (MCI) is a clinical label which includes elderly subjects with memory impairment and with no significant daily functional disability.
0 Comments
Leave a Reply. |