[Psychological and behavioural symptoms as factors of progression to Alzheimer-type dementia in mild cognitive impairment].

Introduction: Mild cognitive impairment (MCI) is a cognitive disturbance in which intensity is not enough to be classified as dementia and does not affect significantly the functioning or activities of daily living. The MCI has a progression rate to Alzheimer-type dementia (ATD) related to different factors.

Aim: To evaluate the association between the presence of psychological and behavioural symptoms (PBS) with progression to ATD en MCI subjects.