Lowest intensity (dBHL) at which mulitple presentation of 125 Hz pure tone stimuli were detected 50% of the time during behavioral audiometry. Use “Audiogram Test Ear” and “Audiometry Test Condition” (i.e. transducer, hearing instrument, etc.) to select the test parameters of interest.

Lowest intensity (dBHL) at which mulitple presentation of 250 Hz pure tone stimuli were detected 50% of the time during behavioral audiometry. Use “Audiogram Test Ear” and “Audiometry Test Condition” (i.e. transducer, hearing instrument, etc.) to select the test parameters of interest.

Lowest intensity (dBHL) at which mulitple presentation of 500 Hz pure tone stimuli were detected 50% of the time during behavioral audiometry. Use “Audiogram Test Ear” and “Audiometry Test Condition” (i.e. transducer, hearing instrument, etc.) to select the test parameters of interest.

Lowest intensity (dBHL) at which mulitple presentation of 750 Hz pure tone stimuli were detected 50% of the time during behavioral audiometry. Use “Audiogram Test Ear” and “Audiometry Test Condition” (i.e. transducer, hearing instrument, etc.) to select the test parameters of interest.

Lowest intensity (dBHL) at which mulitple presentation of 1000 Hz pure tone stimuli were detected 50% of the time during behavioral audiometry. Use “Audiogram Test Ear” and “Audiometry Test Condition” (i.e. transducer, hearing instrument, etc.) to select the test parameters of interest.

Lowest intensity (dBHL) at which mulitple presentation of 1500 Hz pure tone stimuli were detected 50% of the time during behavioral audiometry. Use “Audiogram Test Ear” and “Audiometry Test Condition” (i.e. transducer, hearing instrument, etc.) to select the test parameters of interest.

Lowest intensity (dBHL) at which mulitple presentation of 2000 Hz pure tone stimuli were detected 50% of the time during behavioral audiometry. Use “Audiogram Test Ear” and “Audiometry Test Condition” (i.e. transducer, hearing instrument, etc.) to select the test parameters of interest.

Lowest intensity (dBHL) at which mulitple presentation of 3000 Hz pure tone stimuli were detected 50% of the time during behavioral audiometry. Use “Audiogram Test Ear” and “Audiometry Test Condition” (i.e. transducer, hearing instrument, etc.) to select the test parameters of interest.

Lowest intensity (dBHL) at which mulitple presentation of 4000 Hz pure tone stimuli were detected 50% of the time during behavioral audiometry. Use “Audiogram Test Ear” and “Audiometry Test Condition” (i.e. transducer, hearing instrument, etc.) to select the test parameters of interest.

Lowest intensity (dBHL) at which mulitple presentation of 6000 Hz pure tone stimuli were detected 50% of the time during behavioral audiometry. Use “Audiogram Test Ear” and “Audiometry Test Condition” (i.e. transducer, hearing instrument, etc.) to select the test parameters of interest.

Lowest intensity (dBHL) at which mulitple presentation of 8000 Hz pure tone stimuli were detected 50% of the time during behavioral audiometry. Use “Audiogram Test Ear” and “Audiometry Test Condition” (i.e. transducer, hearing instrument, etc.) to select the test parameters of interest.

Lowest intensity (dB nHL) at which the audiologist identified a repeatable Wave V response for 500 Hz tone burst stimuli during auditory brainstem response testing. Use “ABR Test Ear” and “ABR Air vs. Bone” to select parameters of interest.

Lowest intensity (dB nHL) at which the audiologist identified a repeatable Wave V response for 1000 Hz tone burst stimuli during auditory brainstem response testing. Use “ABR Test Ear” and “ABR Air vs. Bone” to select parameters of interest.

Lowest intensity (dB nHL) at which the audiologist identified a repeatable Wave V response for 2000 Hz tone burst stimuli during auditory brainstem response testing. Use “ABR Test Ear” and “ABR Air vs. Bone” to select parameters of interest.

Lowest intensity (dB nHL) at which the audiologist identified a repeatable Wave V response for 4000 Hz tone burst stimuli during auditory brainstem response testing. Use “ABR Test Ear” and “ABR Air vs. Bone” to select parameters of interest.

Lowest intensity (dB nHL) at which audiologist identified repeatable Wave V response for 0.1 msec click stimuli during auditory brainstem response testing. Use “ABR Test Ear” and “ABR Air vs. Bone” to select parameters of interest.

Ear tested during auditory brainstem response testing

The age of the patient at the time of the encounter/visit.

An alias is an arbitrary unidentifiable reference to a patient. This allows for saving off cohorts of patients without risk of revealing PHI.

Allele representing status of one copy of the gene of interest

Allele representing status of one copy of the gene of interest

Ear tested during the behavioral audiometry.

Describes stimulus, transducer and/or hearing instrument used during behavioral audiometry. Most common values are Air, Bone, Warble Tone, Narrow Band Noise, Aided, CI (cochlear implant).

Manufacturer name of the cochlear implant system.

Internal receiver/stimulator model.

Model name of the primary external cochlear implant speech processor.

Indicates an audiogram has “No Response” values, making severity of hearing loss worse than the indicated value. Should be used in conjunction with the “Hearing Loss Severity” field.

Estimated ear canal volume (ml) as measured by tympanometry. This is identified for each ear on a per-tympanogram basis.

A controlled vocabulary of ethnicities as defined by CHOP.

Manufacturer name of the remote microphone receiver.

Model name of the remote microphone receiver.

Manufacturer name of the remote microphone system transmitter.

Model name of the remote microphone system transmitter.

Standard HUGO name for the gene

Defines whether a patient has at least one ABR (Auditory Brainstem Response) performed.

Defines whether a patient has at least one Audiogram performed.

Defines whether a patient has at least one CT performed.

Defines whether a patient has at least one MRI performed.

The patient has had at least one Otoacoustic Emissions Test performed.

Defines whether a patient has at least one radiology study associated with them.

A calculated field that determines if the audiometric findings during a patient visit resulted in a diagnosis of conductive hearing loss for either ear.

A calculated field that determines if the audiometric findings during a patient visit resulted in a diagnosis of sensorineural hearing loss for either ear.

Defines whether a patient has had a SNP chip ran.

Hearing Aid Manufacturer

Model name of the hearing aid.

Peak middle ear pressure (daPa) as measured by tympanometry. This is identified for each ear on a per-tymapongram basis.

Answers the question whether or not the audiogram contains one or more “No Response” flags for any air conduction tested frequency used in PTA calculation. This is accurate on a per-audiogram basis, therefore if a patient ever had a “No Response” flag on their audiogram at 500, 1000, and/or 2000 Hz, they are in the “Yes” population.

The Pure Tone Average 4(PTA4) is the calculated average of responses (dBHL) to air-conducted pure tone stimuli at following frequencies: 500, 1000, 2000, and 4000 Hz. This is calculated for each ear on a per-audiogram basis, therefore the result set may include multiple results for a single patient or encounter.

The Pure Tone Average (PTA) is the calculated average of responses (dBHL) to air-conducted pure tone stimuli at following frequencies: 500, 1000, and 2000 Hz. This is calculated for each ear on a per-audiogram basis, therefore the result set may include multiple results for a single patient or encounter.

This severity determination is calculated based on the Pure Tone Average (PTA) for a single audiogram. Note that a patient’s severity is likely to change over time. The system used for classification is as follows:

Normal (<=15 dB), Slight (>15 dB and <=25 dB), Mild (>25 db <= 40 dB), Moderate ( >40 dB and <=55 dB), Moderately Severe (>55 dB and <=70 dB), Severe (>70 dB and <=90 dB), Profound (>90dB), Insufficient Data (<=90 but contains “no response” values).

Reference:
Clark, J.G. (1981) Uses and abuses of hearing loss classification, ASHA 23: 493-500. Cited in: Harrell, R.W. (2002) Puretone evaluation. In J. Katz, ed Handbook of Clinical Audiology, 5th Ed Baltimore: Lippincott Williams & Wilkins.

The determined sex of the patient.

The audiogram shape is a general classification system for different audiometric configurations. The audiogram shape is calculated based on a set of rules. Only audiograms that have all major frequencies: 250, 500, 1000, 2000, 4000, and 8000 Hz are classified. This is calculated for each ear on a per-audiogram basis, therefore the result set may include multiple hits on a single patient or encounter.

The specialty area where the patient was seen

Peak compliance (ml or mmho) as measured by tympanometry. This is identified for each ear on a per-tympanogram basis.

Ear tested during tympanometry.

Each audiogram is classed as Normal, Unilateral, Bilateral or Insufficient data, according to the definition given below***; in the case of unilateral loss, this field does not show which ear is affected. For this field, “Normal” is defined as “15 dB HL or better at 500, 1000, 2000 and 4000 Hz, can be 20 dB at other frequencies if tested .”

***The calculation details are:

Calculate separately for each RIGHT EAR-AIR and LEFT EAR-AIR curve on the audiogram (not for bone, hearing aid, soundfield, etc.).

Calculate only if both ears have data for 500, 1000, 2000, and 4000 Hz.

Ear is scored as Normal if: Threshold is 15 dB or better at 500, 1000, 2000, and 4000 Hz, AND 20 dB or better at all other frequencies tested.

If both ears are normal, the field is marked Normal. If only one is normal, the field is marked Unilateral. If neither is normal, the field is marked Bilateral.