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Table 1 Hearing threshold levels in dB (re: ANSI-1969) of case report 2 for each ear at different points in time

From: Vestibulocochlear toxicity in a pair of siblings 15 years apart secondary to aspartame: two case reports

 

Frequency (in Hz)

Thresholds in dB HL (re: ANSI-1969)

  

1/16/87

8/9/02

8/12/02

11/11/02

11/10/03

Right ear

      
 

250

 

0

0

5

10

 

500

5

0

0

0

0

 

1000

0

5

0

0

0

 

2000

0

0

0

0

0

 

3000

0

10

  

0

 

4000

0

25

0

5

0

 

6000

10

40

10

10

10

 

8000

10

55

45

30

20

Left ear

      
 

250

 

5

5

0

5

 

500

10

5

5

0

0

 

1000

5

10

0

10

5

 

2000

0

5

5

5

0

 

3000

5

   

10

 

4000

5

15

15

10

15

 

6000

10

  

20

25

 

8000

35

30

25

35

30