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Table 2 Clinical characteristics of the family individuals

From: A newly identified mutation (c.2029 C > T) in SLC26A4 gene is associated with enlarged vestibular aqueducts in a Chinese family

Subject Age (years) Sex Pure tone test Degree of hearing loss DPOAE Binaural ABR threshold (dB HL) Tympanometry
I-1 72 Male 4000–8000 HZ frequency sensorineural deafness in left ear Mild on left side 1000 HZ, 1500 HZ frequency extraction in normal range in left ear 40 in right ear Binaura “A” curve
    700–1500 HZ frequency extraction in normal range in right ear 50 in left ear  
I-4 71 Female Binaural high-frequency sensorineural deafness Mild on both side Binaural full frequency extraction a bin normal range 50 in right ear Binaura “A” curve
    60 in left ear  
II-1 48 Male Binaural 2000–4000 HZ frequency sensorineural deafness Mild on both side 1000–8000 HZ frequency extraction in abnormal range in left ear 40 in both ears Binaura “A” curve
II-2 45 Male Binaural normal hearing Normal hearing 1000–2000 HZ frequency extraction in normal range in left ear 40 in right ear Binaura “A” curve
    1500 HZ frequency extraction in normal range in right ear 50 in left ear  
II-3 45 Female Low frequency sensorineural deafness in left ear Mild on left side Binaural down 1000 HZ frequency Extraction in normal range 40 in both ears Binaura “A” curve
II-4 41 Female Binaural high-frequency sensorineural deafness Mild on both side Binaural 500–2000 HZ frequency extraction in normal range 60 in both ears Binaura “A” curve
II-5 35 Female Binaural normal hearing Normal hearing Binaural 6000 HZ 8000 HZ frequency extraction in abnormal range 30 in both ears Binaura “A” curve
II-6 31 Male Binaural high-frequency sensorineural deafness Mild on both side Binaural down 2000 HZ frequency extraction in normal range 40 in right ear Binaura “A” curve
    60 in left ear  
III-1 20 Male Sensorineural deafness in right ear Severe profound on both sides Full frequency extraction in abnormal range in right ear 90 in right ear Binaura “A” curve
    Sensorineural deafness with high-frequency in left ear 1500–3000 HZ frequency extraction in normal range in left ear 50 in left ear  
III-2 16 Female Binaural low frequency sensorineural deafness Mild on both side Binaural full frequency extraction in normal range 20 in both ears Binaura “A” curve
  1. DPOAE distortion product otoacoustic emission, ABR auditory brainstem response, dB decibels, HL hearing level