Prevalidation of the First German Version of the Vocal Fatigue Index (VFI)

University of Zurich (UZH)

Status: Completed

Conditions: Vocal Fatigue

Treatments: Other: Vocal Fatigue Index (VFI)

Study type: Interventional

Funder types: Other

Identifiers

NCT03378609

JB_2016-01511

Details and patient eligibility

About

Vocal fatigue has been described as a common complaint in patients with voice disorders, however to date there is no standardized questionnaire in german language to assess specific symptoms. Main aim of this study is to assess the validity of the first german version of the Vocal Fatigue Index (VFI), and english questionnaire developed for voice patients to assess vocal fatigue.

In this study patients with voice disorders will receive the patient based questionnaires "Vocal Fatigue Index (VFI)", "Voice Handicap Index 9 international (VHI 9i)" and "Vocal Tract Discomfort Scale (VTD)", the study information and consent letter together with the standard invitation letter to a voice assessment at the Department for Phoniatrics and Speech Pathology University Hospital Zurich. Data of 93 consecutive volunteering patients will be collected. Furthermore a retest using the VFI will be conducted after 1 week with 10 volunteers. Thereafter construct validity of the VFI as compared to the established voice symptom questionnaires VHI 9i and VTD will be investigated. Further test-retest reliability will be determined.

Enrollment: 81 patients

Sex: All

Ages: 18 to 99 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• age > 18 years
• voice disorder (all etiologies)

Exclusion criteria

• age < 18 Jahre
• current voice therapy
• psychological disease
• botox injection in the Larynx
• inability to independently fill out the questionnaire

Trial design

Primary purpose: Health Services Research

Allocation: N/A

Interventional model: Sequential Assignment

Masking: None (Open label)

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81 participants in 1 patient group

Vocal Fatigue Index (VFI)

Other group

Description:

Standardized Questionnaire assessing vocal fatigue

Treatment:

Other: Vocal Fatigue Index (VFI)