Hearing Impairment Calculator - NIOSH - 1997
See About Derivation of Calculator
1000 Hz
2000 Hz
3000 Hz
4000 Hz
All frequencies must
be filled in with values in dB.
Right Ear
If hearing threshold is greater than 100 dB enter 100 dB.
Left Ear
If hearing threshold is less than zero dB enter 0 dB.
Enter Patient's Age at time of Audiogram:
Patient's age must be greater than 18 yrs to calculate presbycusis.
Calculate Hearing Impairment
Directions:
Age is entered in years. Two decimal points can be entered. To calculate age from the patient's birth date to the audiogram's test date, use the "Find Years From Dates" screen button.
Copyright: Kevin Kavanagh 2001, All rights reserved
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