Table 1.

Audiometric and cochlear implant information for each participant.

Child (gender-age at implantation in months)	Age at Identification (Length of hearing aid trial)	Device (processing strategy)	Mean Better-ear Unaided Hearing Thresholds Pre-implantation (dB HL)	Mean Aided Hearing Thresholds (dB HL) First 6 Months of CI Use	Age Range During Pre-implant and First 6 Post-Implantation Sessions (months)
M-36	32 months (4 months)	Clarion Multi-strategy (CIS)	NR	27	35 – 42
F-30	12 months (17 months)	Nucleus 24 (ACE)	93	26	29 – 37
F-28	23 months (5 months)	Clarion Multi-strategy (CIS)	NR	25	27 – 35
F-20	10 months (9 months)	Clarion Multi-strategy (CIS)	93	29	19 – 27
F-18	15 months (2 months)	Nucleus 24 (ACE)	103	39*	17 – 25
M-10	2 days (7 months)	Clarion Multi-strategy (CIS)	NA	25	9 – 17

CIS = Continuous Interleaved Sampling, ACE = Advanced Combination Encoder; NR = No response at maximum audiometer output levels; NA = Not available; child could not be conditioned for behavioral testing. Auditory Brainstem Response testing predicted severe-profound bilateral hearing impairment

^*6-month PTA not available, PTA from 12-month assessment.