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Disentangling the relationship of subjective cognitive decline and depressive symptoms in the development of cognitive decline and dementia
Author(s) -
Kleineidam Luca,
Wagner Michael,
Guski Jannis,
Wolfsgruber Steffen,
Miebach Lisa,
Bickel Horst,
König HansHelmut,
Weyerer Siegfried,
Lühmann Dagmar,
Kaduszkiewicz Hanna,
Luppa Melanie,
Röhr Susanne,
Pentzek Michael,
Wiese Birgitt,
Maier Wolfgang,
Scherer Martin,
Kornhuber Johannes,
Peters Oliver,
Frölich Lutz,
Wiltfang Jens,
Lewczuk Piotr,
Hüll Michael,
Ramirez Alfredo,
Jessen Frank,
RiedelHeller Steffi G.,
Heser Kathrin
Publication year - 2023
Publication title -
alzheimer's and dementia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.713
H-Index - 118
eISSN - 1552-5279
pISSN - 1552-5260
DOI - 10.1002/alz.12785
Subject(s) - cognitive decline , dementia , cohort , memory clinic , cognition , population , medicine , alzheimer's disease , disease , psychology , psychiatry , gerontology , environmental health
Subjective cognitive decline (SCD) and depressive symptoms (DS) frequently co‐occur prior to dementia. However, the temporal sequence of their emergence and their combined prognostic value for cognitive decline and dementia is unclear. Methods Temporal relationships of SCD, DS and memory decline were examined by latent difference score modeling in a high‐aged, population‐based cohort ( N = 3217) and validated using Cox‐regression of dementia‐conversion. In 334 cognitively unimpaired SCD‐patients from memory‐clinics, we examined the association of DS with cognitive decline and with cerebrospinal fluid (CSF) Alzheimer's disease (AD) biomarkers. Results In the population‐based cohort, SCD preceded DS. High DS were associated with increased risk of dementia conversion in individuals with SCD. In SCD‐patients from memory‐clinics, high DS were associated with greater cognitive decline. CSF Aß42 predicted increasing DS. Discussion SCD typically precedes DS in the evolution to dementia. SCD‐patients from memory‐clinics with DS may constitute a high‐risk group for cognitive decline. Highlights Subjective cognitive decline (SCD) precedes depressive symptoms (DS) as memory declines. Emerging or persistent DS after SCD reports predict dementia. In SCD patients, more amyloid pathology relates to increasing DS. SCD patients with DS are at high risk for symptomatic progression.