Subject

Duration of deafness (years)

Age at implantation

(years)

Ear

Pure tone average (0.5, 1, 2 and 4 kHz)— non implanted ear in dB^*

Pure tone average (0.5, 1, 2 and 4 kHz)— implanted ear in dB^*

1

1.5

73

L

21

>110

2

1

57

L

25

76

3

5

71

R

30

74

4

4

39

R

19

>110

5

2.5

74

L

21

>110

6

7

53

R

24

95

7

1

57

L

32

80

8

0.5

42

L

10

92

9

1.5

47

R

21

87

10

1.0

53

L

18

90

11

3.0

76

R

27

77

12

1.5

39

R

13

>110

13

4.5

44

L

18

86