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http://hdl.handle.net/10397/92538
Title: | Validation of a computerized Hong Kong - Vigilance and Memory Test (HK-VMT) to detect early cognitive impairment in healthy older adults | Authors: | Fung, AWT Lam, LCW |
Issue Date: | 2020 | Source: | Aging and mental health, 2020, v. 24, no. 1, p. 186-192 | Abstract: | Objectives: Hong Kong–Vigilance and Memory Test (HK-VMT) is developed to distinguish early cognitive impairment in the pre-symptomatic phase from normal cognitive ageing in older adults. The objectives were to validate HK-VMT to differentiate mild cognitive impairment (MCI) and healthy control (HC), and to explore the cut-off scores for different educational levels. Method: A total of 606 older adults underwent the HK-VMT and conventional cognitive tests. HK-VMT is a 15 minutes cognitive battery that assesses episodic memory, attention, and visuospatial ability. The HK-VMT total is the sum of accuracy of all subtests with a range of 0 to 40. Differences in socio-demographic and clinical characteristics between groups were explored. Receiver operating characteristic (ROC) analyses were used to compare HK-VMT and Cantonese Mini Mental State Examination (CMMSE). A sample of 50 participants repeated the HK-VMT in 1 month to evaluate test-retest reliability. Results: ROC analysis of Area Under Curve (AUC) demonstrated that HK-VMT (AUC 0.793) was comparable to CMMSE (AUC 0.748) in differentiating MCI from HC in a matched sample. A cutoff at 21/22 was chosen yielding a sensitivity of 86.1% and a specificity of 75.3% for differentiating MCI and HC. Test-retest reliability of HK-VMT total was 0.71 (p<.001) in a month time. Conclusion: HK-VMT has demonstrated satisfactory validity in detecting cognitive impairment with good test-retest reliability in local older adults. It also performed favourably in the highly educated group when compared to CMMSE. |
Keywords: | Computerized Neurocognitive Test Dementia Early detection Highly educated older adults Mild cognitive impairment |
Publisher: | Routledge, Taylor & Francis Group | Journal: | Aging and mental health | ISSN: | 1360-7863 | EISSN: | 1364-6915 | DOI: | 10.1080/13607863.2018.1523878 | Rights: | © 2018 Informa UK Limited, trading as Taylor & Francis Group This is an Accepted Manuscript of an article published by Taylor & Francis in Aging and Mental Health on 01 Oct. 2018 (published online), available at: http://www.tandfonline.com/10.1080/13607863.2018.1523878 |
Appears in Collections: | Journal/Magazine Article |
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APSS-0190_FAM.pdf | Pre-Published version | 897.45 kB | Adobe PDF | View/Open |
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