Information processing speed and 8-year mortality among community-dwelling elderly Japanese.

ABSTRACT:

Background

Cognitive function is an important contributor to health among elderly adults. One reliable measure of cognitive functioning is information processing speed, which can predict incident dementia and is longitudinally related to the incidence of functional dependence. Few studies have examined the association between information processing speed and mortality. This 8-year prospective cohort study design with mortality surveillance examined the longitudinal relationship between information processing speed and all-cause mortality among community-dwelling elderly Japanese.

Methods

A total of 440 men and 371 women aged 70 years or older participated in this study. The Digit Symbol Substitution Test (DSST) was used to assess information processing speed. DSST score was

SUBMITTER: Iwasa H 

PROVIDER: S-EPMC3872525 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature