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Tinnitus Functional Index: Development, validation, outcomes research, and clinical application.

James A Henry1, Susan Griest1, Emily Thielman2

  • 1VA RR&D National Center for Rehabilitative Auditory Research, VA Portland Health Care System, Portland, OR, USA; Department of Otolaryngology, Oregon Health & Science University, Portland, OR, USA.

Hearing Research
|June 16, 2015
PubMed
Summary

The Tinnitus Functional Index (TFI) effectively measures tinnitus impact and treatment responsiveness. Validation in a randomized controlled trial confirmed its sensitivity and the efficacy of telephone tinnitus education.

Keywords:
Randomized controlled trialTinnitus assessmentTinnitus dimensionsTinnitus distressTinnitus severity

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Area of Science:

  • Audiology
  • Otolaryngology
  • Health Outcomes Research

Background:

  • The Tinnitus Research Consortium (TRC) aimed to develop a sensitive tinnitus outcome measure.
  • The 25-item Tinnitus Functional Index (TFI) was developed to address tinnitus impact dimensions and responsiveness.
  • The TFI has gained international recognition and is translated into multiple languages.

Purpose of the Study:

  • To validate the TFI's performance using data from a randomized controlled trial (RCT).
  • To confirm the TFI's sensitivity to treatment effects in patients with bothersome tinnitus.
  • To compare the TFI's efficacy with the Tinnitus Handicap Inventory.

Main Methods:

  • Utilized data from an RCT evaluating telephone tinnitus education for tinnitus.
  • Analyzed TFI scores and subscale changes to assess treatment responsiveness.
  • Calculated Cohen's d effect size and compared TFI with the Tinnitus Handicap Inventory.

Main Results:

  • The TFI demonstrated strong performance in the RCT with a Cohen's d of 1.23.
  • Significant reductions were observed across TFI subscales, with notable changes in Relaxation and Auditory subscales.
  • TFI sensitivity was confirmed, outperforming the Tinnitus Handicap Inventory in this trial.

Conclusions:

  • The TFI is a sensitive and valid measure for assessing tinnitus impact and treatment outcomes.
  • Telephone tinnitus education showed efficacy, supported by TFI score improvements.
  • The TFI and its subscales are reliable tools for tinnitus research and clinical practice.