Lifetime cumulative incidence of dementia in a community-dwelling elderly population in Japan.

ABSTRACT: OBJECTIVE:To estimate the lifetime cumulative incidence of dementia and its subtypes from a community-dwelling elderly population in Japan. METHODS:A total of 1,193 community-dwelling Japanese individuals without dementia, aged 60 years or older, were followed up prospectively for 17 years. The cumulative incidence of dementia was estimated based on a death- and dementia-free survival function and the hazard functions of dementia at each year, which were computed by using a Weibull proportional hazards model. The lifetime risk of dementia was defined as the cumulative incidence of dementia at the point in time when the survival probability of the population was estimated to be less than 0.5%. RESULTS:During the follow-up, 350 participants experienced some type of dementia; among them, 191

SUBMITTER: Yoshida D 

PROVIDER: S-EPMC7455343 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature