2015 Type and Severity Summary of Identified Cases of Hearing Loss (By Ear): ASHA Classification

December 2017

Download page pdf icon[PDF – 315 KB]
Total Cases of Permanent Hearing Loss (54 states and territories*) 6,339 Children
2015 Type and Severity Summary of Identified Cases of Hearing Loss (By Ear):ASHA Classification
BILATERAL (by Ear) UNILATERAL (by Ear) LATERALITY UNKNOWN(i.e., Unknown if case is a unilateral or bilateral loss)
RIGHT EAR LEFT EAR UNKNOWN EAR    (degree of loss for each ear) RIGHT EAR LEFT EAR UNKNOWN EAR
Sensorineural Slight 37 41 0 0 9 15 0 0
Mild 618 594 0 0 97 128 0 4
Moderate 696 685 0 0 115 131 0 1
Moderately Severe 276 297 0 0 56 63 0 1
Severe 273 255 0 3 94 135 0 2
Profound 633 636 0 0 142 146 0 1
Unknown Severity 51 49 0 0 14 14 0 1
Conductive Slight 6 7 0 0 3 3 0 0
Mild 59 50 0 0 31 20 3 0
Moderate 88 90 0 0 127 65 1 5
Moderately Severe 50 53 1 0 144 71 1 0
Severe 22 20 0 0 39 11 1 0
Unknown Severity 33 34 1 2 84 31 0 2
Mixed Slight 2 2 0 0 1 1 0 0
Mild 34 39 0 0 9 7 0 0
Moderate 99 97 0 0 16 21 0 0
Moderately Severe 71 71 0 0 16 18 0 1
Severe 51 61 0 0 17 29 0 0
Profound 29 42 0 0 8 15 0 3
Unknown Severity 15 13 0 0 2 4 0 0
Type Unknown Slight 12 10 0 0 6 7 0 1
Mild 72 76 0 0 20 38 0 17
Moderate 77 83 0 0 23 34 0 20
Moderately Severe 36 36 1 0 20 23 0 10
Severe 44 43 0 0 26 28 0 4
Profound 46 52 0 0 13 16 0 12
Unknown Severity 100 100 2 0 31 50 0 51
Auditory Neuropathy Slight 1 0 0 0 1 1 0 0
Mild 2 2 0 0 0 2 0 0
Moderate 4 4 0 0 3 4 0 0
Moderately Severe 6 4 0 0 0 1 0 0
Severe 15 14 0 0 11 3 0 0
Profound 36 33 0 0 18 17 0 0
Unknown Severity 109 110 0 0 42 64 0 5
Totals by Ear 3,703 3,703 5 5 1,238 1,216 6 141
Totals by Child 3,703 5 1,238 1,216 6 141
Laterality Totals (by Child)   3,708 Bilateral Cases 2,460 Unilateral Cases  
Total all Types and Severity (by Child) 6,309
Cases Resolved (i.e., hearing loss to no hearing loss) 30
Overall Total (by Child) 6,339

Note*: Based on responses from 54 jurisdictions that provided complete data in Part 1 of the HSFS

Summary of Type and Severity of Identified Cases of Hearing Loss in 2015

Bilateral Sensorineural Hearing Loss, 2015 (By Ear)
: Among bilateral sensorineural cases, in the right ear, 37 had slight, 618 had mild, 696 had moderate, 276 had moderately severe, 273 had severe, 633 had profound and 51 had an unknown severity of hearing loss. In the left ear, 41 had slight, 594 had mild, 686 had moderate, 297 had moderately severe, 255 had severe, 636 had profound and 49 had an unknown severity of hearing loss.
Bilateral Conductive Hearing Loss, 2015 (By Ear)
Among bilateral conductive cases, in the right ear, 6 had slight, 59 had mild, 88 had moderate, 50 had moderately severe, 22 had severe and 33 had an unknown severity of hearing loss. In the left ear, 7 had slight, 50 had mild, 90 had moderate, 53 had moderately severe, 20 had severe and 34 had an unknown severity of hearing loss.
Bilateral Mixed Hearing Loss, 2015 (By Ear)
Among bilateral mixed cases, in the right ear, 2 had slight, 34 had mild, 99 had moderate, 71 had moderately severe, 51 had severe, 29 had profound and 15 had an unknown severity of hearing loss. In the left ear, 2 had slight, 39 had mild, 97 had moderate, 71 had moderately severe, 61 had severe, 42 had profound and 13 had an unknown severity of hearing loss.
Bilateral Type Unknown, 2015 (By Ear)
Among bilateral type unknown cases, in the right ear, 12 had slight, 72 had mild, 77 had moderate, 36 had moderately severe, 44 had severe, 46 had profound and 100 had an unknown severity of hearing loss. In the left ear, 10 had slight, 76 had mild, 83 had moderate, 36 had moderately severe, 43 had severe, 52 had profound and 100 had an unknown severity of hearing loss.
Bilateral Auditory Neuropathy, 2015 (By Ear)
Among bilateral auditory neuropathy cases, in the right ear, 1 had slight, 2 had mild, 4 had moderate, 6 had moderately severe, 15 had severe, 36 had profound and 109 had an unknown severity of hearing loss. In the left ear, 2 had mild, 4 had moderate, 4 had moderately severe, 14 had severe, 33 had profound and 110 had an unknown severity of hearing loss.
Unilateral Sensorineural Hearing Loss, 2015 (By Ear)
Among unilateral sensorineural cases, in the right ear, 9 had slight, 97 had mild, 115 had moderate, 56 had moderately severe, 94 had severe, 142 had profound and 14 had an unknown severity of hearing loss. In the left ear, 15 had slight, 128 had mild, 131 had moderate, 63 had moderately severe, 135 had severe, 146 had profound and 14 had an unknown severity of hearing loss.
Unilateral Conductive Hearing Loss, 2015 (By Ear)
Among unilateral conductive cases, in the right ear, 3 had slight, 31 had mild, 127 had moderate, 144 had moderately severe, 39 had severe and 84 had an unknown severity of hearing loss. In the left ear, 3 had slight, 20 had mild, 65 had moderate, 71 had moderately severe, 41 had severe and 31 had an unknown severity of hearing loss.
Unilateral Mixed Hearing Loss, 2015 (By Ear)
Among unilateral mixed cases, in the right ear, 1 had slight, 9 had mild, 16 had moderate, 16 had moderately severe, 17 had severe, 8 had profound and 2 had an unknown severity of hearing loss. In the left ear, 1 had slight, 7 had mild, 21 had moderate, 18 had moderately severe, 29 had severe, 15 had profound and 4 had an unknown severity of hearing loss.
Unilateral Type Unknown, 2015 (By Ear)
Among unilateral type unknown cases, in the right ear, 6 had slight, 20 had mild, 23 had moderate, 20 had moderately severe, 26 had severe, 13 had profound and 31 had an unknown severity of hearing loss. In the left ear, 7 had slight, 38 had mild, 34 had moderate, 23 had moderately severe, 28 had severe, 16 had profound and 50 had an unknown severity of hearing loss.
Unilateral Auditory Neuropathy, 2015 (By Ear)
Among unilateral auditory neuropathy cases, in the right ear, 1 had slight, 0 had mild, 3 had moderate, 0 had moderately severe, 11 had severe, 18 had profound and 42 had an unknown severity of hearing loss. In the left ear, 1 had slight, 2 had mild, 4 had moderate, 1 had moderately severe, 3 had severe, 17 had profound and 64 had an unknown severity of hearing loss.
Laterality Unknown, 2015 (By Ear)
Among sensorineural cases where laterality was unknown, 4 had mild, 1 had moderate, 1 had moderately severe, 2 had severe and 1 had profound and 1 had unknown severity of hearing loss. Among conductive cases where laterality was unknown, 5 had moderate and 2 had unknown severity of hearing loss. Among mixed cases where laterality was unknown, 1 had moderately severe and 3 had profound severity of hearing loss. Among type unknown cases where laterality was unknown, 1 had slight, 17 had mild, 20 had moderate, 10 had moderately severe, 4 had severe, 12 had profound and 51 had an unknown severity of hearing loss. Among auditory neuropathy cases where laterality was unknown, 5 had an unknown severity of hearing loss.
View Page In:pdf icon PDF [315K]