Table 4 Association between noise exposure and periodontitis
Noise exposure | Dependent: periodontitis (reference = no periodontitis) | Dependent: severe periodontitis (reference = no periodontitis) | ||||
|---|---|---|---|---|---|---|
Model 1 | Model 2 | Model 3 | Model 1 | Model 2 | Model 3 | |
Occupational noise exposure | ||||||
No | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) |
Yes | 1.25 (1.06–1.48) | 1.20 (1.02–1.42) | 1.11 (0.94–1.32) | 1.36 (1.08–1.72) | 1.28 (1.02–1.62) | 1.17 (0.92–1.48) |
Duration of occupational noise exposure | ||||||
No | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) |
≤ 120 months | 1.20 (0.98–1.48) | 1.14 (0.93–1.39) | 1.07 (0.87–1.31) | 1.29 (0.96–1.72) | 1.18 (0.88–1.58) | 1.07 (0.80–1.44) |
> 120 months | 1.33 (1.04–1.70) | 1.31 (1.03–1.67) | 1.19 (0.93–1.51) | 1.48 (1.08–2.03) | 1.43 (1.04–1.97) | 1.31 (0.95–1.80) |
Hearing protection in workplace | ||||||
No exposure | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) |
Occupational exposure with protection | 1.12 (0.85–1.48) | 1.07 (0.81–1.41) | 1.00 (0.75–1.33) | 1.49 (0.98–2.26) | 1.40 (0.91–2.14) | 1.27 (0.83–1.95) |
Occupational exposure without protection | 1.29 (1.07–1.56) | 1.24 (1.04–1.49) | 1.15 (0.95–1.38) | 1.33 (1.02–1.71) | 1.24 (0.96–1.60) | 1.13 (0.88–1.46) |
Environmental noise exposure | ||||||
No | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) |
Yes | 1.43 (1.01–2.02) | 1.34 (0.93–1.93) | 1.21 (0.82–1.76) | 2.30 (1.39–3.78) | 2.10 (1.38–3.18) | 1.88 (1.05–3.40) |
Duration of environmental noise exposure | ||||||
No | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) |
≤ 120 months | 1.25 (0.81–1.93) | 1.17 (0.75–1.83) | 1.10 (0.68–1.77) | 1.78 (0.97–3.24) | 1.62 (0.74–3.57) | 1.49 (0.64–3.48) |
> 120 months | 1.65 (0.98–2.79) | 1.55 (0.90–2.65) | 1.33 (0.78–2.25) | 2.74 (1.57–4.78) | 2.69 (1.40–5.20) | 2.35 (1.18–4.68) |
Interaction between occupational & environmental noise | ||||||
Both no exposure | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) |
Only environmental noise exposure | 1.42 (0.94–2.17) | 1.35 (0.89–2.05) | 1.23 (0.81–1.86) | 1.86 (1.00–3.50) | 1.74 (0.90–3.37) | 1.57 (0.80–3.08) |
Only occupational noise exposure | 1.25 (1.05–1.48) | 1.20 (1.01–1.42) | 1.11 (0.93–1.32) | 1.30 (1.02–1.66) | 1.23 (0.97–1.56) | 1.12 (0.88–1.43) |
Both exposure | 1.60 (0.86–3.00) | 1.45 (0.75–2.82) | 1.23 (0.61–2.48) | 3.52 (1.63–7.63) | 3.06 (1.30–7.22) | 2.62 (1.03–6.67) |