Predictors of Disease Progression in Early-Onset Alzheimer's Dementia: A Retrospective Cohort Study.

Objectives: Early-onset Alzheimer's disease (EOAD), defined as onset of AD before the age of 65 years, is less common than the late-onset type, and little is known about the factors affecting disease progression. The aim of the study was to investigate factors influencing disease progression in people with EOAD.

Design: Retrospective cohort study.