The Effect of Sleep Duration and Excessive Daytime Sleepiness on All-Cause Dementia: A Longitudinal Analysis from the Hunter Community Study

It has been proposed that abnormal sleep duration and excessive daytime sleepiness might be risk factors for dementia. This study assessed the interaction between sleep duration and excessive daytime sleepiness, and the effect of sleep duration in the presence or absence of excessive daytime sleepiness on dementia risk in community-dwelling older adults.