The Screening Visual Complaints questionnaire (SVCq) in people with Parkinson's disease-Confirmatory factor analysis and advice for its use in clinical practice.

ABSTRACT:

Background

The Screening Visual Complaints questionnaire (SVCq) is a short questionnaire to screen for visual complaints in people with Parkinson's disease (PD).

Objective

The current study aims to investigate the factor structure of the SVCq to increase the usability of this measure in clinical practice and facilitate the interpretation of visual complaints in people with PD.

Methods

We performed a confirmatory factor analysis using the 19 items of the SVCq of 581 people with PD, investigating the fit of three models previously found in a community sample: a one-factor model including all items, and models where items are distributed across either three or five factors. The clinical value of derived subscales was explored by comparing scores with age-matched controls

SUBMITTER: van der Lijn I 

PROVIDER: S-EPMC9473425 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature