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Health and Quality of Life Outcomes
Published in: Health and Quality of Life Outcomes 1/2013

Open Access 01-12-2013 | Research

A short questionnaire for the assessment of quality of life in patients with chronic obstructive pulmonary disease: psychometric properties of VQ11

Authors: Gregory Ninot, Franck Soyez, Christian Préfaut

Published in: Health and Quality of Life Outcomes | Issue 1/2013

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Abstract

Background

There is a need for a validated short instrument that can be used in routine practice to quantify potential short-term change in Health-Related Quality of Life (HRQoL) in patients with chronic obstructive pulmonary disease (COPD). Our aim is to determine the validity and reliability of the VQ11 questionnaire dedicated to the routine assessment of HRQoL.

Methods

181 COPD patients (40–85 yrs, I to IV GOLD stages) completed the VQ11, and several tests. One week later, 49 of these patients completed the VQ11 again.

Results

Confirmatory factor analysis supported the two-level hierarchical structure of the VQ11 with 11 items covering three components and HRQoL at a higher level. The VQ11 showed good internal consistency and good reproducibility (r = 0.88). Concurrent validity showed significant correlations between VQ11 total scores and St George’s Respiratory Questionnaire-C (r = 0.70), Short Form-36 (r = -0.66 for the physical component and -0.63 for the mental component). We obtained significant correlations with MRC Dyspnea Grades (r = 0.59), the Hospital Anxiety and Depression Scale total score (r = 0.62), and the BODE index (r = 0.53).

Conclusion

The VQ11 has good measurement properties and provides a valid and reliable measure of COPD-specific HRQoL. It is ready for use in routine practice.

Clinical registration

The study was approved by the University of Montpellier 1 Ethics Committee and the Regional Ethics Committee (authorization number: A00332-53).
Appendix
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Metadata
Title
A short questionnaire for the assessment of quality of life in patients with chronic obstructive pulmonary disease: psychometric properties of VQ11
Authors
Gregory Ninot
Franck Soyez
Christian Préfaut
Publication date
01-12-2013
Publisher
BioMed Central
Published in
Health and Quality of Life Outcomes / Issue 1/2013
Electronic ISSN: 1477-7525
DOI
https://doi.org/10.1186/1477-7525-11-179

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