Validation of the Spanish Version of the Voice-Related Quality of Life Questionnaire: Psychometric Properties and Clinical Applications.
Francisco Contreras-Ruston, Andrés Rosenbaum Fuentes, Lukas Salfate Velásquez and 5 others
PMID 39265535WHAT IT FOUND
The Spanish version of the Voice-Related Quality of Life questionnaire accurately distinguishes patients with voice disorders from healthy individuals.
A score below 92.5 suggests a voice problem, and the tool reliably tracks improvements after therapy.
Key findings
01The questionnaire demonstrates strong internal consistency and reproducibility over time in a Chilean Spanish population.
02A cut-off score of 92.5 on the total scale effectively discriminates between individuals with voice disorders and vocally healthy subjects.
03The tool is responsive to change, showing significant score improvements after voice treatment that align with perceptual voice analysis.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
The factor analysis identified three factors rather than the original two, suggesting a different underlying structure in this population. Responsiveness was tested in a small subset of only 17 patients. The study did not differentiate psychometric properties based on specific types of voice disorders.
Declared interests
The authors declared no conflicts of interest. The first author was supported by a scholarship from the Chilean National Agency for Research and Development (ANID).
The easy way to misread this
Do not apply the 92.5 cut-off score to non-Chilean Spanish populations or other languages, as psychometric properties are specific to the cultural and linguistic context validated in this study.