Hearing Impairment Projection Calculator:

All frequencies must 
be filled in with values in dB.

 If hearing threshold is greater than 100 dB enter 100 dB. If hearing threshold is less than zero dB 
enter 0 dB.

Patient's age must be greater than 18 yrs to calculate presbycusis.


250 Hz
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8000 Hz
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     Left 

Enter Patient's Age at time of Audiogram:

Enter Patient's Age for the Projected Audiogram:

Select Sex of Patient
 Male   
Female

Directions:  Age is entered in years with up to two decimal points.  To calculate age from the patient's birth date to the audiogram's test date, use the "Find Years From Dates" screen button.   If the Projected Audiogram's age is left blank only the hearing impairment for the Initial Audiogram is calculated.

Select Handicap Equation
  AAO 1979              
  AAOO 1959           
NIOSH-FECA 1972
NIOSH 1997
British Society of Audiology
Wisconsin 
Oregon
Ireland
Comparison of All Equations
(Initial Audiogram Only)

Presbycusis & Test Projection

 Handicap Formula Definitions
 
Terms of Calculator Use
 

 

Select Presbycusis Equation
 Robinson Sutton's
Spoor's Equations

Project Male with Female    
Presbycusis Data

Adding Noise HL & Presbycusis
 Use ISO 1999 Compression Factor.
Reduce Offset By 50%.

Calculate Hearing Impairment & Projection

To add additional equations or report errors, please:  Contact ENT USA

Copyright:  Kevin Kavanagh  2001,  All rights reserved     Search Website

 

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