Age group

Total No.

Normal hearing

(Bilateral)

SNHL (no)

Age group

Prevalence (%)

20 - 29

29

27

2

6.9

30 - 39

15

13

2

13.3

40 - 49

30

24

6

20.0

50 - 59

30

20

10

33.3

60 - 69

62

17

45

72.6

70 - 79

24

2

22

91.0

Total

190

103

87