Abstract
BACKGROUND: We aimed to describe the Subjective Cognitive Impairment Cohort (SCIENCe) study design, to cross-sectionally describe participant characteristics, and to evaluate the SCD-plus criteria.
METHODS: The SCIENCe is a prospective cohort study of subjective cognitive decline (SCD) patients. Participants undergo extensive assessment, including cerebrospinal fluid collection and optional amyloid positron emission tomography scan, with annual follow-up. The primary outcome measure is clinical progression.
RESULTS: Cross-sectional evaluation of the first 151 participants (age 64 ± 8, 44% female, Mini-Mental State Examination 29 ± 2) showed that 28 (25%) had preclinical Alzheimer's disease (AD) (amyloid status available n = 114 (75%)), 58 (38%) had subthreshold psychiatry, and 65 (43%) had neither. More severe subjective complaints were associated with worse objective performance. The SCD-plus criteria age ≥ 60 (OR 7.7 (95% CI 1.7-38.9)) and apolipoprotein E (genotype) e4 (OR 4.8 (95% CI 1.6-15.0)) were associated with preclinical AD.
CONCLUSIONS: The SCIENCe study confirms that SCD is a heterogeneous group, with preclinical AD and subthreshold psychiatric features. We found a number of SCD-plus criteria to be associated with preclinical AD. Further inclusion and follow-up will address important questions related to SCD.
Original language | English |
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Article number | 76 |
Pages (from-to) | 76 |
Journal | Alzheimer's Research & Therapy |
Volume | 10 |
Issue number | 1 |
DOIs | |
Publication status | Published - 7 Aug 2018 |
Externally published | Yes |
Keywords
- Aged
- Amyloid beta-Peptides/cerebrospinal fluid
- Amyloid/metabolism
- Apolipoprotein E4/genetics
- Cognitive Dysfunction/complications
- Cohort Studies
- Cross-Sectional Studies
- Disease Progression
- Female
- Humans
- Magnetic Resonance Imaging
- Male
- Mental Disorders/etiology
- Mental Status and Dementia Tests
- Middle Aged
- Neuropsychological Tests
- Peptide Fragments/cerebrospinal fluid
- Positron-Emission Tomography
- Research Design
- Surveys and Questionnaires
- tau Proteins/cerebrospinal fluid