Subjective cognitive decline: self and informant comparisons.


BACKGROUND It is unclear whether self- or informant-based subjective cognition better distinguishes emotional factors from early-stage Alzheimer's disease (AD). METHODS Healthy members (n = 447) of the Arizona apolipoprotein E (APOE) cohort and their informants completed the self and informant paired Multidimensional Assessment of Neurodegenerative Symptoms questionnaire (MANS). RESULTS Decline on the MANS was endorsed by 30.6% of members and 26.2% of informants. Self- and informant-based decliners had higher scores of psychological distress and slightly lower cognitive scores than nondecliners. Over the next 6.7 years, 20 developed mild cognitive impairment (MCI). Converters were older at entry than nonconverters (63.8 [7.0] vs 58.8 [7.3] years, P = .003), 85% were APOE ε4 carriers (P < .0001), and they self-endorsed decline earlier than informants (58.9 [39.2] vs 28.0 [40.4] months before MCI; P = .002). CONCLUSIONS Self- and informant-based subjective decline correlated with greater psychological distress and slightly lower cognitive performance. Those with incident MCI generally self-endorsed decline earlier than informants.

DOI: 10.1016/j.jalz.2013.01.003
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@article{Caselli2014SubjectiveCD, title={Subjective cognitive decline: self and informant comparisons.}, author={Richard J. Caselli and Kewei Chen and Dona Locke and Wendy Lee and Auttawut Roontiva and D. Brent Bandy and Adam Fleisher and Eric Reiman}, journal={Alzheimer's & dementia : the journal of the Alzheimer's Association}, year={2014}, volume={10 1}, pages={93-8} }