Cross-sectional study of sleep quantity and quality and amnestic and non-amnestic cognitive function in an ageing population: the English Longitudinal Study of Ageing (ELSA).

ABSTRACT:

Background

The aim was to investigate the association between sleep disturbances and cognitive function in younger and older individuals from an ageing population.

Methods

3,968 male and 4,821 female white participants, aged 50 years and over, from the English Longitudinal Study of Ageing (ELSA) were studied. Information on sleep quality and quantity as well as both amnestic (memory, ACF) and non-amnestic (non-memory, nACF) function was available at Wave 4 (2008). Analysis of covariance was used to evaluate the relationship between sleep and cognitive function.

Results

After adjustment for multiple confounders in the younger group (50-64 years) duration of sleep explained 15.2% of the variance in ACF (p = 0.003) and 20.6% of nACF (p = 0.010). In the older group (65+ y

SUBMITTER: Miller MA 

PROVIDER: S-EPMC4072772 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature