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- W4312086601 abstract "Background We have established NONAGINTA – Memory and Health in 90-year-olds –study in a population-based sample with 45 years of follow-up. Our study is aimed to understand both, the antecedents of cognitive impairment and successful cognitive aging in the oldest-old (90 years or older). Method Participants were nonagenarians from a population-based longitudinal older Finnish Twin Cohort study with baseline questionnaire in 1975. Ongoing 90-year-old data collection included postal questionnaire and telephone administered cognitive testing. Episodic memory (EM) was measured with total words recalled in three trials of 10-word list. Predictors of EM included cognitive, health-related, and psychological factors. Self-reported educational attainment, body mass index (BMI), physical activity (METhours/day), life satisfaction and neuroticism were measured in middle age (N = 55, age M = 46.2, SD = 1.7 years) and in old age (N = 59-67, age M = 91.3, SD = 1.9 years). Semantic verbal fluency (number of animals in 1-minute) and depressive symptoms (Center for Epidemiological Studies – Depression (CES-D)) were measured only in old age. We used individual level linear regression models with age and sex as covariates and adjusted for family structure. Result To date, 67 individuals have cognitive data. On average, women (N = 36, M = 11.97, SD = 4.70) had better EM than men (N = 31, M = 11.10, SD = 4.74), but this difference was not statistically significant (p = 0.49). Better verbal fluency was significantly related to better EM (r = 0.34, p<0.001). Compared to those with 6 years of education, those with 7-11 years and those with 12 or more years of education had significantly better EM: 4.03 (95%CI: 1.27-6.80) (p = 0.005) and 5.75 (95%CI: 3.75-7.45) (p<0.001) words more, respectively. Mean CES-D was 12.3 (SD = 8.7) and 16% scored above the cut-off for clinically significant depressive symptoms, however, depressive symptoms were not related to EM (p = 0.15). Middle age or old age BMI, physical activity, life satisfaction or neuroticism were not significantly related to EM (p’s >0.32). Conclusion Our preliminary results suggest that cognitive, but not midlife or old age physical or psychological health-related factors, are associated with episodic memory performance in nonagenarians. Good episodic memory goes hand in hand with good semantic fluency and cognitive benefits of early life educational attainment are still evident in nonagenarians." @default.
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- W4312086601 date "2022-12-01" @default.
- W4312086601 modified "2023-10-16" @default.
- W4312086601 title "Antecedents of episodic memory in the oldest‐old: a population‐based NONAGINTA study with 45‐years of follow‐up" @default.
- W4312086601 doi "https://doi.org/10.1002/alz.067045" @default.
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