Skip to main content

Table 3 Crude association between noise exposure and periodontitis

From: Are occupational and environmental noises associated with periodontitis? Evidence from a Korean representative cross-sectional study

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)  
  1. P values were obtained by complex samples chi-square test