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Precision Audiometry and Ecological Validity: Exploring the Link Between Patient-Reported Outcome Measures and Speech
1Audiology, ENT Clinic, UKSH, 24105 Kiel, Germany.
Audiology Research
|October 28, 2025
Summary
Patient-reported outcomes in cochlear implant (CI) users correlate with hearing test scores. Introducing fluctuating noise improves real-world relevance but reduces test accuracy.
Area of Science:
- Audiology
- Hearing Science
- Biomedical Engineering
Background:
- Hearing-impaired patients require evolving audiometric methods.
- Cochlear implant (CI) technology advances necessitate updated clinical standards.
Purpose of the Study:
- To investigate the relationship between patient-reported outcomes and audiometric test scores in CI users.
- To compare hearing assessment in quiet versus noisy environments.
Main Methods:
- Prospective study of 20 postlingually deafened CI users.
- Speech comprehension assessed using Freiburg words (quiet) and Oldenburg sentence test (noise).
- Subjective feedback collected via the HISQUI19 questionnaire.
Main Results:
- Significant positive correlation found between word scores in quiet and subjective hearing ability (Spearman's R = 0.57).
- Higher correlation of subjective comprehension with fluctuating noise compared to stationary noise.
- Test-retest accuracy decreased significantly when transitioning from stationary to fluctuating noise.
Conclusions:
- Temporal fluctuations in background noise enhance ecological validity but decrease test accuracy.
- Knowledge of this trade-off aids in selecting appropriate audiometric tests for evaluating ecological validity and precision.
- Informs improved test method selection for CI user studies.
