Audiometric Characteristics of Children and Adults Andrea Pittman, Ph.D. Patricia Stelmachowicz, Ph.D. Boys Town National Research Hospital Funded by a grant from NIH
Audiometric Characteristics of Children and Adults
Feb 13, 2016
Audiometric Characteristics of Children and Adults. Andrea Pittman, Ph.D. Patricia Stelmachowicz, Ph.D. Boys Town National Research Hospital. Funded by a grant from NIH. Possible Adult-Child Differences. Audiometric Configurations Right-Left Ear Asymmetry of Hearing Loss - PowerPoint PPT Presentation
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Audiometric Characteristics of Children and Adults
Andrea Pittman, Ph.D.Patricia Stelmachowicz, Ph.D.
Boys Town National Research Hospital
Funded by a grant from NIH
Possible Adult-Child Differences
Audiometric Configurations Right-Left Ear Asymmetry of Hearing Loss Progression of Hearing Loss
Methods Groups 248 audiograms from 60- and 61-year-old
adults 227 audiograms from 6-year-old children
Criteria Right ear thresholds at octave test frequencies
250-8 kHz At least one threshold > 30 dB Confirmed right ear sensorinueral hearing loss
by bone conduction audiometry Air-bone gaps < 10 dB.
Audiogram Classification Sloping Rising Flat U-Shaped Noise Notched Tent-Shaped Other
0
20
40
60
80
100
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Audiogram Classification Sloping Rising Flat U-Shaped Noise Notched Tent-Shaped Other
0
20
40
60
80
100
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Audiogram Classification Sloping Rising Flat U-Shaped Noise Notched Tent-Shaped Other
0
20
40
60
80
100
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Audiogram Classification Sloping Rising Flat U-Shaped Noise Notched Tent-Shaped Other
0
20
40
60
80
100
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Audiogram Classification Sloping Rising Flat U-Shaped Noise Notched Tent-Shaped Other
0
20
40
60
80
100
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Audiogram Classification Sloping Rising Flat U-Shaped Noise Notched Tent-Shaped Other
0
20
40
60
80
100
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Audiogram Classification Sloping Rising Flat U-Shaped Noise Notched Tent-Shaped Other
0
20
40
60
80
100
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Audiogram Classification Sloping Rising Flat U-Shaped Noise Notched Tent-Shaped Other
0
20
40
60
80
100
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Results: Configurations
0
10
20
30
40
50
60
% O
F AU
DIOG
RAM
S
AdultsChildren
Results: Average Audiograms
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Adults Children
Results: Sloping
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Adults Children
Results: Sloping
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Adults Children
Results: Sloping
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Adults Children
Results: Flat
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Adults Children
Results: U-Shaped
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Adults Children
Results: U-Shaped
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Adults Children
Results: Tent-Shaped
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Adults Children
Results: Tent-Shaped
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Adults Children
Results: Other
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Adults Children
Results: Other
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Adults Children
Results: Other
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Adults Children
Results: Other
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Adults Children
Results: Other
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
-20
0
20
40
60
80
100
120
250 500 1000 2000 4000 8000Frequency (Hz)
Hear
ing
Leve
l (dB
HL)
Adults Children
Asymmetry Left Ear Thresholds 248 60- and 61-year-old adults 227 6-year-old children
Results: Asymmetry
0
10
20
30
40
250 500 1000 2000 4000 8000FREQUENCY (Hz)
% O
F AU
DIOG
RAM
S
AdultsChildren
0
20
40
60
80
100
120
0 20 40 60 80 100 120Right Ear (dB HL)
0
20
40
60
80
100
120
0 20 40 60 80 100 120Right Ear (dB HL)
Left
Ear (
dB H
L)
Results: Asymmetry @ 250 Hz
Adults Children
0
20
40
60
80
100
120
0 20 40 60 80 100 120Right Ear (dB HL)
0
20
40
60
80
100
120
0 20 40 60 80 100 120Right Ear (dB HL)
Left
Ear (
dB H
L)
Results: Asymmetry @ 500 Hz
Adults Children
0
20
40
60
80
100
120
0 20 40 60 80 100 120Right Ear (dB HL)
0
20
40
60
80
100
120
0 20 40 60 80 100 120Right Ear (dB HL)
Left
Ear (
dB H
L)
Results: Asymmetry @ 1k Hz
Adults Children
0
20
40
60
80
100
120
0 20 40 60 80 100 120Right Ear (dB HL)
0
20
40
60
80
100
120
0 20 40 60 80 100 120Right Ear (dB HL)
Left
Ear (
dB H
L)
Results: Asymmetry @ 2k Hz
Adults Children
0
20
40
60
80
100
120
0 20 40 60 80 100 120Right Ear (dB HL)
0
20
40
60
80
100
120
0 20 40 60 80 100 120Right Ear (dB HL)
Left
Ear (
dB H
L)
Results: Asymmetry @ 4k Hz
Adults Children
0
20
40
60
80
100
120
0 20 40 60 80 100 120Right Ear (dB HL)
0
20
40
60
80
100
120
0 20 40 60 80 100 120Right Ear (dB HL)
Left
Ear (
dB H
L)
Results: Asymmetry @ 8k Hz
Adults Children
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