Table I.

Demographic Characteristics of PSI Participants

Communication Mode	Age Group		Age at Implantation	Unaided PTA	Aided PTA (CI)	Number of Electrodes
Oral Communication (n = 38)	Early (n = 22)	Mean	36 months	111 dB HL	34 dB HL	19.32
		Range	17–53	98–120	25–40	8–22
	Late (n = 16)	Mean	73 months	110 dB HL	32 dB HL	19.69
		Range	57–106	97–120	22–39	9–22
Total Communication (n = 42)	Early (n = 20)	Mean	37 months	113 dB HL	37 dB HL	20.72
		Range	22–53	103–120	25–58	8–22
	Late (n = 22)	Mean	72 months	114 dB HL	35 dB HL	20.22
		Range	55–104	100–121	21–58	11–22