. Author manuscript; available in PMC: 2010 Jun 8.

Published in final edited form as: J Speech Lang Hear Res. 2007 Aug;50(4):1048–1062. doi: 10.1044/1092-4388(2007/073)

Table 1.

Pre- and post-implant audiological history

PRE-IMPLANT

	Mean	Standard Deviation	Range
Age at diagnosis (mos)	11.17	8.13	1-30

First aided (mos)	12.33	7.96	1-31

Unaided better ear PTA at 500, 1K, 2K Hz	107.36	10.84	77-120

Better ear aided threshold	64.62	14.57	32-80

Length of HA use before CI	10.83	5.96	0-30

POST-IMPLANT
Age at Surgery	23.16	7.75	12-38

Average CI threshold	30.21	5.20	20-43