The cognition and emotional well-being indices of the Parkinson's disease questionnaire-39: what do they really measure?

ABSTRACT:

Introduction

The Parkinson's disease questionnaire-39 (PDQ-39) is a common measure of health related quality of life (HRQoL) that is widely used with Parkinson disease (PD) patients. Previous evidence suggests that the PDQ-39 reflects at least 8 dimensions (i.e., Emotion, Cognitions, Mobility, etc). To date, little research has examined the external/convergent validity of the Cognitions and Emotional Well-being domains of the PDQ-39.

Methods

A convenience sample of 303 PD patients underwent a comprehensive multi-domain neuropsychological evaluation, including tests of execution function, episodic verbal memory, processing speed, language and working memory, as well as completing measures of depression, apathy, state and trait anxiety and HRQoL (PDQ-39). Hierarchical regressi

SUBMITTER: Jones JD 

PROVIDER: S-EPMC4321103 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature