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. Author manuscript; available in PMC: 2018 Mar 1.
Published in final edited form as: Ear Hear. 2017 Mar-Apr;38(2):159–173. doi: 10.1097/AUD.0000000000000380

Table 2.

Recent AAO and Young AAO group demographic statistics

Group Age
(years)		 Hearing (dB)
Avg .25–8 kHz
of NH ear		 Hearing (dB)
Avg .25–8 kHz
of SPHL ear		 Age Onset
SPHL
(years)		 Length of
Deafness
(years)
Recent AAO
(n = 9)		 47.1 (11.3)
30 – 62		 15.0 (9.1)
4.4 – 29.4		 116.1 (3.3)
111.3 – 121.3+		 45.7 (11.3)
29 – 61		 1.6 (1.1)
<1 – 3
Young AAO
(n = 8)		 43.8 (16.9)
25 – 72		 15.1 (6.3)
5.0 – 23.1		 107.3 (10.1)
90.0 – 120.1+		 0.8 (1.4)
0 – 3		 43.0 (16.7)
25 – 72

Note: Recent AAO = onset of SPHL within 3 years of testing; Young AAO = onset of SPHL by 3 years of age; SPHL = severe to profound hearing loss; means, standard deviations (in parentheses) and ranges are indicated.