Depression subtypes and 5-year risk of dementia and Alzheimer disease in patients aged 70 years.

Objective: The objective of this study was to estimate several subtypes of depressive disorders as risk factors for dementia and Alzheimer disease (AD) specifically.

Methods: This is a population-based cohort study using a sample of 451 non-demented older people. Adjusted Cox proportional hazard models were calculated to determine the association of depression with dementia or AD development after 5 years.

Depression subtypes and 5-years risk of mortality in aged 70 years: a population-based cohort study.

Aims: To estimate the mortality risk related to different mood disorders in a geriatric sample of subjects aged 70 years and over without dementia.

Method: All non-demented subjects at baseline who participate on a second phase of a population-based cohort study were included. Adjusted Cox proportional hazards models were used to determine the association between depression and 5-year survival of 451 elderly people without dementia originally recruited for a representative community dementia cohort study.