Research Article
Audiogram Comparison of Workers from Five Professional Categories
Table 3
Relationship of the arithmetic means, in dB (HL), of the tonal thresholds at the frequencies of 3, 4, and 6 kHz by exposure time to noise (
).
| Exposure time (month) | Variable | | Mean | SD | Minimum | Median | Maximum |
|
≤60 | R_Mean346 | 652 | 7.88 | 7.16 | −3.33 | 6.70 | 70.00 | L_Mean346 | 652 | 9.25 | 8.63 | −5.00 | 8.30 | 110.00 |
| 61–120 | R_Mean346 | 489 | 9.12 | 7.09 | −3.33 | 8.30 | 50.00 | L_Mean346 | 489 | 10.58 | 7.92 | −3.33 | 8.33 | 53.33 |
| 121–180 | R_Mean346 | 361 | 11.41 | 7.80 | −3.30 | 10.00 | 63.33 | L_Mean346 | 361 | 12.80 | 8.28 | −1.70 | 11.67 | 63.30 |
| >180 | R_Mean346 | 638 | 18.05 | 13.13 | −1.67 | 15.00 | 90.00 | L_Mean346 | 638 | 19.77 | 12.95 | 0.00 | 16.67 | 80.00 |
|
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for the exposure range effect and side effect.
|