Impact of cognitive reserve markers on incident mild cognitive impairment and dementia: Evidence from the Korean Longitudinal Study of Aging, 2006‐2022

Abstract

Background: In South Korea, the annual incidence rate of dementia is 18.8 cases per 1,000 elderly individuals, rising with age from 12.5 cases per 1,000 (65–74 years) to 87.2 per 1,000 (≥85 years). In 2021, 22.7% of individuals aged 65 and older had mild cognitive impairment, indicating that one in five elderly individuals is affected.