Subjective cognitive decline and self-reported sleep problems: The SCIENCe project

Lieza G. Exalto*, Heleen M.A. Hendriksen, Frederik Barkhof, Karlijn A. van den Bosch, Jarith L. Ebenau, Mardou van Leeuwenstijn-Koopman, Niels D. Prins, Charlotte E. Teunissen, Leonie N.C. Visser, Philip Scheltens, Wiesje M. van der Flier

*Corresponding author for this work

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Abstract

We aim to investigate the frequency and type of sleep problems in memory clinic patients with subjective cognitive decline (SCD) and their association with cognition, mental health, brain magnetic resonance imaging (MRI), and cerebrospinal fluid (CSF) biomarkers. Three hundred eight subjects (65 ± 8 years, 44% female) were selected from the Subjective Cognitive Impairment Cohort (SCIENCe) project. All subjects answered two sleep questionnaires, Berlin Questionnaire (sleep apnea) and Pittsburgh Sleep Quality Index (sleep quality) and underwent a standardized memory clinic work-up. One hundred ninety-eight (64%) subjects reported sleep problems, based on 107 (35%) positive screenings on sleep apnea and 162 (53%) on poor sleep quality. Subjects with sleep problems reported more severe depressive symptoms, more anxiety, and more severe SCD. Cognitive tests, MRI, and CSF biomarkers did not differ between groups. Our results suggest that improvement of sleep quality and behaviors are potential leads for treatment in many subjects with SCD to relieve the experienced cognitive complaints.

Original languageEnglish
Article numbere12287
JournalAlzheimer's and Dementia: Diagnosis, Assessment and Disease Monitoring
Volume14
Issue number1
DOIs
Publication statusPublished - 2022

Keywords

  • Alzheimer's disease
  • Berlin questionnaire
  • Pittsburgh Sleep Quality Index
  • sleep
  • subjective cognitive decline

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