Table 2.
Pure-tone audiogram by frequency
| Characteristics | Right side | Left side | |||||
|---|---|---|---|---|---|---|---|
|
|
|
||||||
| Hz | Earphone use | Control group | P-value | Earphone use | Control group | P-value | |
| 500 (dB, mean, SD) | 9.59 (10.98) | 9.90 (11.13) | 0.38 | 9.68 (9.97) | 10.10 (9.71) | 0.18 | |
| 1000 (dB, mean, SD) | 6.05 (10.56) | 5.95 (10.44) | 0.75 | 4.82 (10.29) | 5.14 (9.45) | 0.31 | |
| 2000 (dB, mean, SD) | 7.01 (11.52) | 6.89 (11.04) | 0.74 | 6.49 (11.42) | 6.19 (10.87) | 0.41 | |
| 3000 (dB, mean, SD) | 7.08 (12.99) | 6.99 (12.77) | 0.83 | 6.50 (13.80) | 6.57 (12.85) | 0.87 | |
| 4000 (dB, mean, SD) | 8.63 (15.09) | 8.66 (15.16) | 0.94 | 8.24 (15.55) | 8.46 (14.77) | 0.65 | |
| 6000 (dB, mean, SD) | 16.61 (16.56) | 17.29 (17.22) | 0.20 | 17.13 (17.58) | 17.08 (17.06) | 0.93 | |
| Average for 500, 1000, 2000, 3000 (dB, mean, SD) | 7.43 (10.00) | 7.43 (9.83) | 0.99 | 6.87 (10.05) | 7.00 (9.25) | 0.67 | |
SD, standard deviation; dB, decibel. *Independent t test.