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Validation of an informant‐based cognitive screening tool for Parkinson disease
Author(s) -
Chee KokYoon,
Ong KhengYee,
Mak ChinYeat,
Yacob Sapini,
Yeo ShenCheng,
Thrichelam Nathisha,
Amarnath Deepa Darshini,
Thong KaiShin,
Moey CheeHoong,
Ponusamy Thanam,
Viswanathan Shanthi,
Puvanarajah Santhi
Publication year - 2017
Publication title -
asia‐pacific psychiatry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.654
H-Index - 21
eISSN - 1758-5872
pISSN - 1758-5864
DOI - 10.1111/appy.12278
Subject(s) - malay , receiver operating characteristic , montreal cognitive assessment , dementia , discriminative model , cognition , cutoff , psychology , psychometrics , cognitive impairment , clinical psychology , medicine , disease , psychiatry , artificial intelligence , computer science , linguistics , philosophy , physics , quantum mechanics
The objective of this study was to establish the psychometric properties of the AD8 Dementia Screening Interview in patients with Parkinson disease (PD) with or without cognitive impairment using the Montreal Cognitive Assessment Tool (MoCA) for comparison. Methods The AD8 was translated into Malay for Malay‐speaking participants. A correlation analysis and a receiver operator characteristic curve were generated to establish the psychometric properties of the AD8 in relation to the MoCA. Results One hundred fifty patients and their caretakers completed the AD8 and MoCA. Using a cutoff score of 1/8, the AD8 had 81% sensitivity and 59% specificity for the detection of cognitive impairment in PD. With a cutoff score of 2/8, the AD8 had 83% specificity and 64% sensitivity. The area under the receiver operator characteristic curve was 80%, indicating good‐to‐excellent discriminative ability. Discussion These findings suggest that the AD8 can reliably differentiate between cognitively impaired and cognitively normal patients with PD and is a useful caregiver screening tool for PD.