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Subjective Cognitive Impairment Cohort (SCIENCe): study design and first results

Slot, RER; Verfaillie, SCJ; Overbeek, JM; Timmers, T; Wesselman, LMP; Teunissen, CE; Dols, A; ... Van der Flier, WM; + view all (2018) Subjective Cognitive Impairment Cohort (SCIENCe): study design and first results. Alzheimer's Research & Therapy , 10 , Article 76. 10.1186/s13195-018-0390-y. Green open access

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Abstract

BACKGROUND: We aimed to describe the Subjective Cognitive Impairment Cohort (SCIENCe) study design, to crosssectionally 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.

Type: Article
Title: Subjective Cognitive Impairment Cohort (SCIENCe): study design and first results
Open access status: An open access version is available from UCL Discovery
DOI: 10.1186/s13195-018-0390-y
Publisher version: http://dx.doi.org/10.1186/s13195-018-0390-y
Language: English
Additional information: © The Author(s). 2018 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
Keywords: Science & Technology, Life Sciences & Biomedicine, Clinical Neurology, Neurosciences, Neurosciences & Neurology, Subjective cognitive decline, Preclinical Alzheimer's disease, Subthreshold psychiatry, SCD-plus criteria, Study design, PRECLINICAL ALZHEIMERS-DISEASE, CEREBROSPINAL-FLUID BIOMARKERS, DWELLING OLDER-ADULTS, MEMORY COMPLAINTS, AMYLOID-BETA, CLINICAL PROGRESSION, DEPRESSIVE SYMPTOMS, HEALTH-PROBLEMS, FOLLOW-UP, DECLINE
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Brain Repair and Rehabilitation
URI: https://discovery.ucl.ac.uk/id/eprint/10054807
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