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Comparison of the Two Validated German Versions of the Tinnitus Functional Index for Switzerland and for Germany

Prospektive Studie Zum Vergleich Der Beiden Validierten Deutschen Versionen Des Tinnitus Functional Index für Die Schweiz Und für Deutschland

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03638986
Enrollment
255
Registered
2018-08-20
Start date
2018-11-01
Completion date
2020-08-01
Last updated
2020-11-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Tinnitus, Subjective

Brief summary

Tinnitus is defined as a perception of sound without any external sound source. Chronic tinnitus is a frequent condition that can affect the quality of life. The questionnaire Tinnitus Functional Index (TFI) promises to be the new gold standard in tinnitus evaluation. Due to the forward and backward translation of this questionnaire, there are two different German versions of TFI for Switzerland and Germany. Both German versions were validated. The aim of this study is to compare the two German versions of the TFI with each other and to recommend the better one for the further use in tinnitus evaluation for the German speaking population.

Interventions

No Intervention planned.

Sponsors

University of Zurich
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Electronic given informed consent * Older than 18 years * Existing tinnitus * Sufficient knowledge of the German language

Exclusion criteria

* Insufficient knowledge of the German language * Impossibility to fulfill an online questionnaire due to cognitive or physical limitation * No tinnitus * Younger than 18 years

Design outcomes

Primary

MeasureTime frameDescription
Comparison of the TFI sumscore of both German versions20 minutesTFI sumscore ranges from 0 to 100

Secondary

MeasureTime frame
Factor analysis of the two German TFI versions20 minutes

Countries

Germany, Switzerland

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026