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KCI등재 학술저널

Cognitive Change and Its Predictive Value among Elderly People in Beijing

Cognitive Change and Its Predictive Value among Elderly People in Beijing

The purpose of this study was to observe the longitudinal change of cognitive function of elderly people. Over 180 community-dwelling elderly people were tested with MMSE at baseline and followed up five years later. About 42.9% of 1,225 people who had cognitive impairment at baseline survey were found to be dead in follow-up survey, and the death rate was much higher than that of cognitive intact person, which was 19.45%. Among 1,335 cases who finished MMSE test twice the mean score of MMSE at follow-up was 23.35, which was lower than original mean score (23.77). The rate of people identified as abnormal by education adjusted cutoff point also increased from 8.24% to 17.8%. Viewed individually 51.9% of them remained stable in MMSE score, 24.5% decreased and 23.6% increased after five years. Old people aged 70 or above, less educated, and people who scored around or lower than cutoff point were more likely to decline. Conclusion: The performance of MMSE has certain predictive value to the outcome of elderly people, and cognitive decline in community lived people is quite slow.

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