Examination effects in audiometric testing of children

Area of Science:

• Audiology
• Pediatric audiology
• Hearing science

Background:

• Serial auditory testing is crucial for monitoring hearing development in children.
• Understanding examination effects is essential for accurate interpretation of hearing threshold data.
• Previous research has not fully quantified the impact of repeated auditory examinations on hearing sensitivity in pediatric populations.

Purpose of the Study:

• To analyze serial auditory brainstem response (ABR) threshold data in children aged 6 to 18 years.
• To quantify the linear examination effects on hearing sensitivity over time.
• To adjust hearing threshold data for examination effects before further analysis.

Main Methods:

• Multivariate analysis of variance for repeated measures was employed.
• Regression methods were used to assess linear examination effects.
• Data from 261 children, with hearing thresholds recorded at 6-month intervals over eight examinations, were analyzed.

Main Results:

• Hearing sensitivity demonstrated improvement with repeated examinations.
• Cumulative examination effects approximated 3 dB at 0.5, 1, and 2 kHz and 5 dB at 4 and 6 kHz after eight sessions.
• Examination effects were significantly larger in the right ear compared to the left ear; no significant sex difference was observed.

Conclusions:

• Repeated auditory examinations can lead to measurable improvements in hearing sensitivity in children.
• The quantified examination effects necessitate adjustment of serial hearing threshold data for accurate interpretation.
• Findings highlight the importance of accounting for testing-induced changes in pediatric audiological assessments.