Skip to main content

Table 2 Mean SRI for each ear in workers with occupational and environmental noise exposure according to audiometry

From: Speech recognition index of workers with tinnitus exposed to environmental or occupational noise: a comparative study

Environmental noise Hearing Loss
(n 90)
  Age groups
  20-41 42-51 52-85
Mean (S.D.) SRI RE SRI LE SRI RE SRI LE SRI RE SRI LE
87,64 89,16 81,96 85,92 83,69 85,79
(18,68) (16,08) (19,70) (19,81) (16,86) (14,76)
  Normal Hearing
(n 40)
Age groups
20-41 42-51 52-85
Mean (S.D.) SRI RE SRI LE SRI RE SRI LE SRI RE SRI LE
98,48 97,52 97,78 97,33 97,60 96,40
(2,96) (4,29) (2,91) (6,63) (3,86) (5,15)
Occupational noise Hearing Loss
(n 269)
  Age groups
  20-41 42-51 52-85
Mean (S.D.) SRI RE SRI LE SRI RE SRI LE SRI RE SRI LE
89,33 89,85 86,59 85,07 80,03 83,41
(15,63) (12,08) (15,44) (16,42) (17,21) (15,43)
  Normal Hearing
(n 69)
Age groups
20-41 42-51 52-85
Mean (S.D.) SRI RE SRI LE SRI RE SRI LE SRI RE SRI LE
92,02 92,93 96,00 96,84 96,00 96,00
(20,38) (20,75) (3,77) (4,13) (4,62) (5,66)
  1. Environmental noise: Hearing loss RE x Normal hearing RE (F = 23.16; p < 0.01).
  2. Hearing loss LE x Normal hearing LE (F = 15.24; p < 0.01).
  3. Occupational noise: Hearing loss RE x Normal hearing RE (F = 13.95; p < 0.01).
  4. Hearing loss LE x Normal hearing LE (F = 16.56; p < 0.01).