Correction Factor Evaluation and Between-System Comparison of Behavioral Threshold Predictions From Auditory Brainstem Response Measures in Infants-Reference-Cited by-同舟云学术

Correction Factor Evaluation and Between-System Comparison of Behavioral Threshold Predictions From Auditory Brainstem Response Measures in Infants

Published:2024-09-11 Issue: Volume: Page:1-14
ISSN:1059-0889
Container-title:American Journal of Audiology
language:en
Short-container-title:Am J Audiol

Author:

Bagatto Marlene¹^ORCID,El-Naji Rana¹,Purcell David¹,Easwar Vijayalakshmi²³^ORCID,Pigeon Marie⁴,Witte Jill⁵,Malandrino April⁵,Brown Christine¹,Burton Alison⁶,Tonus Kristen⁷,Wheeler Kristen⁷,Campbell Bill⁸,Scollie Susan¹^ORCID

Affiliation:

1. National Centre for Audiology, Western University, London, Ontario, Canada

2. National Acoustic Laboratories, Sydney, New South Wales, Australia

3. Western University, London, Ontario, Canada

4. Children's Hospital of Eastern Ontario, Ottawa, Canada

5. Humber River Hospital, North York, Ontario, Canada

6. Ear and Hearing Clinic, Kitchener, Ontario, Canada

7. ErinoakKids, Mississauga, Ontario, Canada

8. Superior Hearing Centre, Thunder Bay, Ontario, Canada

Abstract

Purpose: Auditory brainstem response (ABR) thresholds are corrected to estimate behavioral thresholds in infants. Corrections were validated, and a comparison of behavioral threshold estimates between systems was conducted to inform equipment transition and protocols in Ontario, Canada. Method: In Study 1, a retrospective file review was conducted. ABR threshold estimates from 84 infants with hearing loss were compared to behavioral thresholds to validate the accuracy of the ABR corrections applied in the Ontario Infant Hearing Program since 2016. Study 2 examined the precision of two different ABR systems to estimate thresholds in 37 adult and 105 infant ears. Results: Corrected ABR thresholds predicted behavioral thresholds in infants to within 1.77 dB (range of mean values across frequency: 1.18–2.26 dB) on average. The average differences decreased across frequency to 0.6 dB (range: 0.14 to −1.23) when ear canal acoustics were accounted for. The average between-system difference in ABR threshold estimates was 2.40 dB (range: 1.18–2.26). Conclusions: ABR correction factors used in Ontario's Infant Hearing Program provide accurate predictions of behavioral thresholds in infants with hearing loss. When calibration and collection parameters are similar between different ABR systems, threshold estimates are comparable and no further adjustment to correction factors was required.

Publisher

American Speech Language Hearing Association

Link

https://pubs.asha.org/doi/pdf/10.1044/2024_AJA-24-00018

Reference44 articles.

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