ArticleJournal of clinical neurology (Seoul, Korea)2022
Reliability and Validity of the Subjective Cognitive Complaints Questionnaire for Parkinson's Disease (SCCQ-PD).
Article in Journal of clinical neurology (Seoul, Korea), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Subjective cognitive complaints in cognitively unimpaired Parkinson's disease: Associations with affective burden, motor severity, and awareness-related processes.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026Article
- Neuroimaging evidence of microstructural alteration in Parkinson's disease with subjective cognitive decline.NPJ Parkinson's disease · 2026Article
- Association of motoric cognitive risk syndrome with falls in older adults: findings from three longitudinal studies.BMC geriatrics · 2025Article
- Subjective Cognitive Complaints in Cognitively Normal Patients With Parkinson's Disease: A Systematic Review.Journal of movement disorders · 2023Article
- Fasting glucose variability and risk of dementia in Parkinson's disease: a 9-year longitudinal follow-up study of a nationwide cohort.Frontiers in aging neuroscience · 2023Article
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
background and purposeSubjective cognitive complaints (SCCs) are gaining attention as a self-perceived symptom for cognitive impairment in patients with Parkinson's disease (PD), but there are few suitable tools for assessing SCCs in PD. This study aimed to develop and validate a questionnaire for assessing SCCs in PD, called the Subjective Cognitive Complaints Questionnaire for Parkinson's Disease (SCCQ-PD).
methodsThe SCCQ-PD consists of 12 yes/no questions on subjective cognitive function, and the questionnaire was completed by patients with PD (score-P) and their caregivers (score-C). The cognitive function of patients was examined using comprehensive neuropsychological tests.
resultsThis study included 73 patients (38 cognitively normal, 25 with mild cognitive impairment [MCI], and 10 demented) and their caregivers. Score-P and score-C had excellent reliability (Kuder-Richardson formula 20 coefficients of 0.893 and 0.931, respectively), and the scores exhibited a strong intercorrelation. Both score-P and score-C were negatively correlated with cognitive performance, and both were excellent in discriminating demented patients from those with normal cognition or MCI (areas under the receiver operating characteristic curve of 0.83 and 0.88, respectively).
conclusionsThe SCCQ-PD is a reliable tool for assessing SCCs in patients with PD. SCCs measured using the SCCQ-PD are correlated with objective cognitive decline and useful for discriminating demented patients from nondemented patients.
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