"ISO 1999 and ANSI S3.44"
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"control workers compensation costs for hearing loss"

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Hearing Loss Predictive Modeling

Hearing loss is perhaps the most predictable occupational disease, but not all hearing loss can be attributed to noise exposure from the worker’s worksite. It can be due to other non-occupational activities, pathological problems, or age, etc.

Bertrand-Johnson Acoustics (BJA) offers state-of-the-art predictive models capable of comparing and analyzing audiometric test results and environmental noise exposure to provide strategic human resources information. Timely and accurate information regarding potential future hearing loss cases and their economic impact is useful in motivating employers to introduce adequate measures to prevent future hearing loss.

Some of the strategic information provided includes:

  • Potential hearing loss cases prediction for 1 to 30 years based on the retrospective analysis of the audiometric tests
  • Audiometric pattern analysis (normal to pathologic) helps indicate potential noise induced hearing loss
  • Analysis of career exposure to noise
  • Inclusion of COLA (cost of living adjustment) in future cost prediction
  • Predictive model for hearing loss can be applied to any standards (US as well as international premium tables)


BJA’s predictive model is essential for enabling management to play a pro-active role in controlling workers compensation costs.
For each jurisdiction, a claim can be assessed according to the specific jurisdiction criteria such as pre-employment hearing loss, pathologies, allocation of liability, etc.
These criteria can be included in our predictive model.

Note: BJAs predictive statistical model is based on ISO 1999 and ANSI S3.44






Make management aware
of the potential
future costs of noise induced hearing loss.

Establish pro-active strategies to reduce
future hearing losses
and associated
compensation costs