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Table 2 Characteristics of population by occupational and environmental noise

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

Variables

Occupational noise

P

Environmental noise

P

No (n = 7033), n (%)

Yes (n = 1294), n (%)

No (n = 8150), n (%)

Yes (n = 177), n (%)

Age, mean (95% confidence interval) (years)

58.57 (58.30–58.84)

57.49 (56.91–58.07)

0.001*

58.41 (58.15–58.66)

58.24 (56.61–59.88)

0.853*

Gender

 Male (n = 3572)

2784 (37.8)

788 (58.4)

< 0.001

3498 (40.1)

74 (41.8)

0.905

 Female (n = 4755)

4249 (62.2)

506 (41.6)

 

4652 (57.9)

103 (58.2)

 

Residence

 Urban (n = 6706)

5690 (83.1)

1016 (80.2)

0.184

6572 (80.6)

134 (75.7)

0.102

 Rural (n = 1621)

1343 (16.9)

278 (19.8)

 

1578 (19.4)

43 (24.3)

 

Income

 I (lowest) (n = 2024)

1639 (23.1)

385 (29.9)

< 0.001

1967 (24.1)

57 (32.2)

0.005

 II (n = 2103)

1748 (24.3)

355 (26.8)

 

2045 (25.1)

58 (32.8)

 

 III (n = 2098)

1799 (25.6)

299 (24.1)

 

2068 (25.4)

30 (16.9)

 

 IV (highest) (n = 2102)

1847 (27.0)

255 (19.2)

 

2070 (25.4)

32 (18.1)

 

Occupation

 White collar (n = 1662)

1521 (20.8)

141 (10.4)

< 0.001

1639 (20.1)

23 (13.0)

0.195

 Blue collar (n = 2156)

1590 (21.6)

566 (41.8)

 

2104 (25.8)

52 (29.4)

 

 Pink collar (n = 4509)

3922 (57.6)

587 (47.8)

 

4407 (54.1)

102 (57.6)

 

Marital status

 Married (n = 8018)

6785 (96.8)

1233 (95.5)

0.027

7855 (96.4)

163 (92.1)

0.039

 Single (n = 309)

248 (3.2)

61 (4.5)

 

295 (3.6)

14 (7.9)

 

Diabetes

 No (n = 4593)

3926 (56.6)

667 (53.4)

0.136

4507 (55.3)

86 (48.6)

0.037

 Prediabetes (n = 2367)

1971 (28.0)

396 (29.3)

 

2317 (28.4)

50 (28.2)

 

 Diabetes (n = 1367)

1136 (15.4)

231 (17.3)

 

1326 (16.3)

41 (23.2)

 

Smoking

 Quit/never smoker (n = 6989)

6025 (86.4)

964 (75.0)

< 0.001

6850 (84.0)

139 (78.5)

0.004

 Current smoker (n = 1338)

1008 (13.6)

330 (25.0)

 

1300 (16.0)

38 (21.5)

 

Toothbrushing

 No (n = 121)

102 (1.5)

19 (1.5)

0.876

117 (1.4)

4 (2.3)

0.975

 Yes (n = 8206)

6931 (98.5)

1275 (98.5)

 

8033 (98.6)

173 (97.7)

 

Recent dental checkups

 No (n = 5230)

4413 (62.1)

817 (63.4)

0.465

5118 (62.8)

112 (63.3)

0.539

 Yes (n = 3097)

2620 (37.9)

477 (36.6)

 

3032 (37.2)

65 (36.7)

 
  1. P values were obtained by complex samples chi-square test
  2. * P value was obtained by complex samples independent t-test