Voice-Related Quality of Life Measure

Abstract

The Voice Related Quality of Life Measure (V-RQOL) is a concise, 10-item self-administered questionnaire designed to assess the impact of voice disorders on an individual’s quality of life. Developed by Hogikyan and Sethuraman in 1999, the V-RQOL measures two primary domains: socio-emotional functioning and physical functioning related to voice use. This instrument is widely utilized in clinical settings, particularly for baseline assessment, monitoring treatment efficacy, and evaluating outcomes following voice therapy.

Keywords

V-RQOL, Voice Related Quality of Life Measure, voice disorders, quality of life, dysphonia, speech pathology, socio-emotional functioning, physical functioning, psychometrics.

Authors

Hogikyan ND, Sethuraman G (1999)

Purpose

The primary purpose of the V-RQOL is to provide a standardized, patient-reported outcome measure (PROM) reflecting the subjective burden imposed by a voice disorder. Unlike objective laryngeal examinations, the V-RQOL captures the functional and psychosocial consequences of dysphonia, offering a holistic view of the patient experience.

In clinical practice, the measure is crucial for treatment planning and longitudinal assessment. It allows clinicians—such as speech-language pathologists and otolaryngologists—to quantify changes in patient perception over time, enabling objective evaluation of interventions like phonosurgery or voice therapy programs.

Construct

The V-RQOL is structured to measure the overall quality of life as it relates specifically to vocal function. The construct is operationalized through two distinct subscales, reflecting the multifaceted nature of voice impairment.

The first domain, Socio-Emotional Functioning, assesses the psychological and social impact of the voice problem, including feelings of anxiety, embarrassment, or limitations in social participation due to vocal difficulties. The second domain, Physical Functioning, addresses the physical symptoms and functional limitations, such as difficulty projecting the voice, vocal fatigue, or limitations in daily activities requiring voice use.

Validity

The initial validation studies conducted by Hogikyan and Sethuraman demonstrated strong evidence for the V-RQOL’s validity. Construct validity was established through factor analysis, confirming the theoretical separation into the two intended domains: Physical and Socio-Emotional. Furthermore, the scale exhibits high convergent validity, showing significant correlation with other established measures of health-related quality of life and general vocal handicap indices.

Discriminant validity is supported by the measure’s ability to differentiate between individuals with clinically diagnosed voice disorders and healthy control subjects. The V-RQOL is also sensitive to change, supporting its use as an outcome measure (i.e., known-groups validity and responsiveness), showing significant score improvements following successful therapeutic intervention.

Reliability

The reliability of the V-RQOL is consistently reported as excellent across numerous international adaptations and studies. Internal consistency, measured by Cronbach’s alpha, typically exceeds 0.90 for the total scale score, indicating high homogeneity among the 10 items. The subscales also maintain acceptable to high internal consistency.

Test-retest reliability has been confirmed in stable patient populations, demonstrating the measure’s stability over time when the patient’s vocal condition remains unchanged. This robust reliability profile ensures that the V-RQOL provides consistent and dependable data for both clinical management and research purposes.

Factor Analysis

The foundational psychometric analysis of the V-RQOL utilized principal components analysis to confirm its underlying structure. This analysis consistently revealed a clear two-factor solution, which aligns precisely with the theoretical framework of the scale.

The first factor typically loads heavily on items concerning physical effort, vocal strain, and functional impairment, corresponding to the Physical Functioning domain. The second factor captures items related to social withdrawal, emotional distress, and communication difficulties, forming the Socio-Emotional Functioning domain. This robust factor structure supports the scoring methodology, which allows for both a total V-RQOL score and separate scores for the two primary subscales.

Instrument

Test Type: Patient-Reported Outcome Measure (PROM), Questionnaire

Format: 10 self-administered items, typically scored on a 5-point Likert scale.

Language Available: Multiple validated translations exist (e.g., Dutch, Spanish, German, etc.). The original instrument was developed in English.

Population Group: Clinical population experiencing voice disorders (e.g., dysphonia, vocal fold lesions).

Age Group: Adults (18 years and older).

Population Details: Individuals presenting with symptoms affecting vocal quality, pitch, loudness, or endurance, spanning functional, organic, and neurological etiologies. The scale focuses on the Head/Neck region and associated Communication and Speech Functions.

Test Methodology: Self-report inventory. Scoring involves standardizing raw scores to a 0–100 scale, where 100 represents the highest possible quality of life related to voice.

Keywords

Dysphonia, laryngeal pathology, vocal function, outcome measure, speech-language pathology, otolaryngology, health status, patient assessment.

Authors

Author ORCID Identifier: Not publicly specified for this entry.

Affiliation Email addresses: Contact information generally managed through the University of Michigan Medical Center.

Correspondence Address: Hogikyan ND, Department of Otolaryngology, University of Michigan Medical Center, Ann Arbor, MI, USA.

Permissions & Fee and Test Year

The V-RQOL was initially published in 1999. The scale is frequently used under license or may be available for non-commercial academic research without a fee, though formal permission from the original authors or copyright holders (usually the University of Michigan) is often required for large-scale commercial applications or translations.

The scale documentation (Toelichtingsformulier/Explanatory Form) for an adaptation of the V-RQOL is available as a PDF. The original PDF can be downloaded here: VRQOL-form.pdf.

Reference’s

1. Hogikyan ND, Sethuraman G. Validation of an instrument to measure voice-related quality of life (V-RQOL). The Laryngoscope. 1999 Jul;109(7 Pt 1):1199-204.
2. Jacobson BH, Johnson A, Grywalski C, et al. The Voice Handicap Index (VHI): development and validation. Am J Speech Lang Pathol. 1997 Aug;6(3):66-70.

Items of the Voice Related Quality of Life Measure

IMPORTANT: The following scale items must be preserved in their original language and must not be changed in any way.

The specific text of the 10 items was not provided in the source material. However, the items are divided into two domains as follows:

• Items related to Physical Functioning (e.g., reflecting effort, vocal fatigue, and limitations in specific speaking situations).
• Items related to Socio-Emotional Functioning (e.g., reflecting feelings of frustration, depression, or avoidance of social interactions due to voice problems).