Cognition in non-demented Parkinson's disease vs essential tremor: A population-based study.

ABSTRACT:

Objectives

Patients with Parkinson's disease (PD) and essential tremor (ET) have a higher risk of cognitive impairment than age-matched controls. Only a few small studies (11-18 subjects per group) have directly compared the cognitive profile of these conditions. Our aim was to compare the cognitive profile of patients with these two conditions to each other and to healthy individuals in a population-based study of non-demented participants.

Materials and methods

This investigation was part of the NEDICES study, a survey of the elderly in which 2438 dementia-free participants underwent a short neuropsychological battery. We used nonparametric techniques to evaluate whether there are differences and/or a gradient of impairment across the groups (PD, ET, and controls). Also, w

SUBMITTER: Sanchez-Ferro A 

PROVIDER: S-EPMC5585022 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature