Table 2 Mean and standard deviation of the hearing loss in the left and right ears at the different frequencies
From: Prevalence hearing loss of truck and bus drivers in a cross-sectional study of 65533 subjects
Frequency (Hz) | Hearing loss in the left ear | Hearing loss in the right ear | P value* | ||
|---|---|---|---|---|---|
Mean | Standard deviation | Mean | Standard deviation | ||
500 | 20.08 | 5.28 | 19.93 | 5.26 | P < 0.001 |
1000 | 19.39 | 5.47 | 19.36 | 5.63 | 0.106 |
2000 | 20.75 | 7.07 | 20.40 | 6.56 | P < 0.001 |
3000 | 22.91 | 10.29 | 22.30 | 9.63 | P < 0.001 |
4000 | 25.60 | 13.07 | 24.75 | 12.53 | P < 0.001 |
6000 | 25.96 | 13.77 | 25.06 | 12.96 | P < 0.001 |
8000 | 26.18 | 14.67 | 25.26 | 13.82 | P < 0.001 |