From: Relationship of cigarette smoking and hearing loss in workers exposed to occupational noise
Frequency | Non-smoker *(n = 2,270) | Ex-smoker *(n = 2,680) | Current smoker *(n = 3,593) | p value †| Post-hoc comparison |
---|---|---|---|---|---|
1 kHz | 15.9 (15.47–16.37) | 15.9 (15.51–16.34) | 16.5 (16.10–16.83) | 0.098 | - |
2 kHz | 18.8 (18.24–19.35) | 18.6 (18.04–19.07) | 19.6 (19.11–20.01) | 0.012 | a,b < c |
3 kHz | 26.5 (25.81–27.22) | 27.0 (26.36–27.67) | 28.0 (27.43–28.58) | 0.005 | a,b < c |
4 kHz | 32.1 (31.30–32.80) | 32.5 (31.84–33.24) | 33.9 (33.34–34.55) | <0.001 | a,b < c |