Subjective memory decline and objectively assessed memory ability among older people : a cross-sectional study

Abstract

Objective: The purpose of this study was to explore whether the objectively assessed memory is correlated with the self-rated memory, and does the self-rated memory ability differ among ages. Methods: Data was obtained from the Evergreen project. A total of 558 people aged between 72 and 92 years were included in the current study. In order to examine the complexity of the relationships between self-rated memory and objective memory ability of the older people, cognitive functioning was assessed by metacognitive self-evaluations and Mini-D cognitive screening test. Main Results: Mini-D sum score and self-rated memory decline was significantly correlated (p< .001). People with lower Mini-D score had 1.40 times the odds of having self-rated memory decline (95% CI= .90-2.18) compared to the individuals with higher Mini-D sum score (>=34). No significant age difference for self-rated memory ability was found (OR=.99, 95% CI= .61-1.43). Conclusion: Objectively assessed memory correlated modestly, but significantly with self-rated memory. Old individuals with lower objectively assessed memory ability are not more likely to experience self-rated memory decline. Self-rated memory decline did not differ with age.