The Hong Kong Grocery Shopping Dialog Task (HK-GSDT): A Quick Screening Test for Neurocognitive Disorders

Xianmin Gong (), Patrick C. M. Wong, Helene H. Fung, Vincent C. T. Mok, Timothy C. Y. Kwok, Jean Woo, Ka Ho Wong and Helen Meng ()
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Xianmin Gong: Stanley Ho Big Data Decision Analytics Research Centre, The Chinese University of Hong Kong, Hong Kong, China
Patrick C. M. Wong: Department of Linguistics and Modern Languages, The Chinese University of Hong Kong, Hong Kong, China
Helene H. Fung: Department of Psychology, The Chinese University of Hong Kong, Hong Kong, China
Vincent C. T. Mok: Division of Neurology, Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China
Timothy C. Y. Kwok: Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China
Jean Woo: Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China
Ka Ho Wong: Department of Systems Engineering and Engineering Management, The Chinese University of Hong Kong, Hong Kong, China
Helen Meng: Stanley Ho Big Data Decision Analytics Research Centre, The Chinese University of Hong Kong, Hong Kong, China

IJERPH, 2022, vol. 19, issue 20, 1-14

Abstract: The Hong Kong Grocery Shopping Dialog Task (HK-GSDT) is a short and easy-to-administer cognitive test developed for quickly screening neurocognitive disorders (NCDs). In the test, participants are instructed to do a hypothetical instrumental activity of daily living task of purchasing ingredients for a dish from a grocery store and verbally describe the specific shopping procedures. The current study aimed to validate the test with a sample of 545 Hong Kong older adults (58.8% female; aged 73.4 ± 8.37 years), including 464 adults with normal cognitive function, 39 with mild NCD, and 42 with major NCD. Demographic characteristics (i.e., sex, age, education) and clinical diagnosis of cognitive states (i.e., major NCD, mild NCD, and normal aging) were collected. Cognitive functioning was measured using the HK-GSDT and several standardized NCD-screening tests. The results showed good reliability (i.e., internal consistency) and structural validity in the HK-GSDT. It discriminated among different cognitive conditions, particularly between major NCDs and the other conditions, as effectively as did the existing standardized neurocognitive tests (e.g., Montreal Cognitive Assessment, Hong Kong List Learning Test). Moreover, the HK-GSDT explained additional variance of cognitive condition on top of those standardized neurocognitive tests. These results indicate that the HK-GSDT can be used alone, or in combination with other tests, to screen for NCDs.

Keywords: neurocognitive disorder; dementia; mild cognitive impairment; screening; early detection; neurocognitive test; instrumental activity of daily living (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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