Table 3 Crude association between noise exposure and periodontitis
Variables | Periodontitis | P | Mild & severe periodontitis | P | |||
|---|---|---|---|---|---|---|---|
No (n = 4988), n (%) | Yes (n = 3339), n (%) | No (n = 4988), n (%) | Mild (n = 2448), n (%) | Severe (n = 891), n (%) | |||
Occupational noise exposure | |||||||
No (n = 7033) | 4307 (86.4) | 2726 (82.2) | < 0.001 | 4307 (86.4) | 2023 (83.0) | 703 (79.9) | < 0.001 |
Yes (n = 1294) | 681 (13.6) | 613 (17.8) | 681 (13.6) | 425 (17.0) | 188 (20.1) | ||
Duration of occupational noise exposure | |||||||
No (n = 7033) | 4307 (86.4) | 2726 (82.2) | < 0.001 | 4307 (86.4) | 2023 (79.9) | 703 (79.9) | < 0.001 |
≤ 120 months (n = 793) | 443 (8.8) | 350 (9.9) | 443 (8.8) | 244 (9.7) | 106 (10.6) | ||
> 120 months (n = 501) | 238 (4.8) | 263 (7.9) | 238 (4.8) | 181 (7.4) | 82 (9.4) | ||
Hearing protection in workplace | |||||||
No exposure (n = 7033) | 4307 (86.4) | 2726 (82.2) | < 0.001 | 4307 (86.4) | 2023 (83.0) | 703 (78.9) | < 0.001 |
Occupational exposure with protection (n = 308) | 164 (3.3) | 144 (3.9) | 164 (3.3) | 89 (3.3) | 55 (5.5) | ||
Occupational exposure without protection (n = 986) | 517 (10.3) | 469 (13.9) | 517 (10.3) | 336 (13.7) | 133 (14.6) | ||
Environmental noise exposure | |||||||
No (n = 8150) | 4894 (98.3) | 3256 (97.6) | 0.060 | 4894 (98.3) | 2399 (98.1) | 857 (96.4) | 0.001 |
Yes (n = 177) | 94 (1.7) | 83 (2.4) | 94 (1.7) | 49 (1.9) | 34 (3.6) | ||
Duration of environmental noise exposure | |||||||
No (n = 8150) | 4894 (98.3) | 3256 (97.6) | 0.137 | 4894 (98.1) | 2399 (98.0) | 857 (96.2) | 0.004 |
≤ 120 months (n = 90) | 48 (0.9) | 42 (1.2) | 48 (1.0) | 22 (0.9) | 19 (2.1) | ||
> 120 months (n = 87) | 46 (0.8) | 41 (1.2) | 46 (0.9) | 27 (1.1) | 15 (1.7) | ||
Interaction between occupational & environmental noise | |||||||
Both no exposure (n = 6913) | 4241 (85.2) | 2672 (80.7) | < 0.001 | 4241 (85.2) | 1988 (81.6) | 684 (78.0) | < 0.001 |
Only environmental noise exposure (n = 120) | 66 (1.2) | 54 (1.5) | 66 (1.2) | 35 (1.4) | 19 (1.9) | ||
Only occupational noise exposure (n = 1237) | 653 (13.1) | 584 (17.0) | 653 (13.1) | 411 (16.5) | 173 (18.4) | ||
Both exposure (n = 57) | 28 (0.5) | 29 (0.8) | 28 (0.5) | 14 (0.5) | 15 (1.7) | ||