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G.O. Reynolds, L. Manning, D. Kirn, H. Klein, O. Hampton, O. Burke Jr., R. Buckley, D. Rentz, R. Sperling, G.A. Marshall, R.E. Amariglio

J Prev Alz Dis 2022;3(9):435-440

BACKGROUND: With the increasing focus on prevention of Alzheimer’s disease, there is need for characterization of preclinical populations. Local participant registries offer an opportunity to facilitate research engagement via remote data collection, inform recruitment, and characterize preclinical samples, including individuals with subjective cognitive decline. OBJECTIVES: We sought to characterize subjective cognitive decline in a registry sample, as related to psychiatric history and related variables, including personality and loneliness, quality of life, and factors related to dementia risk (e.g., family history of dementia). DESIGN, SETTING, PARTICIPANTS: Participants were 366 individuals (mean age=67.2 (range 50-88), 65% female, 94% white, 97% non-Hispanic or Latino, 82% with at least a bachelor’s degree) with no reported history of mild cognitive impairment or dementia. All participants had expressed interest in research, primarily via community outreach events and prior research involvement. Data was collected via electronic surveys, distributed using REDCap. Electronic questionnaires included questions on demographic variables, subjective cognitive decline, quality of life, loneliness, and personality. RESULTS: There was a high prevalence of risk factors for dementia in the registry sample (68% with family history of dementia, 31% with subjective cognitive decline). Subjective cognitive decline was more common in women and associated with history of depression, but not with family history of dementia. Subjective cognitive decline was also associated with lower conscientiousness and lower emotional stability, as well as higher loneliness and lower quality of life. Among participants who endorsed a psychiatric history, most reported onset more than 10 years prior, rather than within the last 10 years. CONCLUSIONS: Subjective cognitive decline in a registry sample may be more strongly associated with longstanding psychiatric and personality variables, rather than family history of dementia, adding to the literature on characterization of subjective cognitive decline across different settings. These findings highlight the acceptability of remote data collection and the potential of registries to inform recruitment by characterizing registrants, which may help to stratify dementia risk and match participants to eligible trials.

G.O. Reynolds ; L. Manning ; D. Kirn ; H. Klein ; O. Hampton ; O. Burke Jr. ; R. Buckley ; D. Rentz ; R. Sperling ; G.A. Marshall ; R.E. Amariglio ; (2022): Subjective Cognitive Decline in a Registry Sample: Relation to Psychiatric History, Loneliness, and Personality. The Journal of Prevention of Alzheimer’s Disease (JPAD).

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