No wear (N = 91) | Disposable or cotton mask (N = 114) | Gas mask (N = 11) | SCBA (N = 132) | p-value* | |||||
---|---|---|---|---|---|---|---|---|---|
N | % | N | % | N | % | N | % | ||
Age (years) | 0.000 | ||||||||
< 30 | 5 | 13.9 | 8 | 22.2 | 2 | 5.6 | 21 | 58.3 | |
30 ~ 39 | 22 | 20.2 | 33 | 30.3 | 2 | 1.8 | 52 | 47.7 | |
40 ~ 49 | 47 | 33.8 | 46 | 33.1 | 4 | 2.9 | 42 | 30.2 | |
≥ 50 | 17 | 26.6 | 27 | 42.2 | 3 | 4.7 | 17 | 26.6 | |
Gender | 0.012 | ||||||||
Male | 81 | 24.7 | 108 | 32.9 | 10 | 3.0 | 129 | 39.3 | |
Female | 10 | 50.0 | 6 | 30.0 | 1 | 5.0 | 3 | 15.0 | |
Smoking | 0.101 | ||||||||
No smoker | 56 | 23.6 | 79 | 33.3 | 5 | 2.1 | 97 | 40.9 | |
Current smoker | 35 | 31.5 | 35 | 31.5 | 6 | 5.4 | 35 | 31.5 | |
Job | 0.000 | ||||||||
Firefighter | 51 | 20.8 | 59 | 24.1 | 3 | 1.2 | 132 | 53.9 | |
Police officer | 16 | 34.8 | 22 | 47.8 | 8 | 17.4 | 0 | 0.0 | |
Volunteer firefighter | 21 | 61.8 | 13 | 38.2 | 0 | 0.0 | 0 | 0.0 | |
Special warfare reserved force | 3 | 13.0 | 20 | 87.0 | 0 | 0.0 | 0 | 0.0 | |
Abnormal symptoms | |||||||||
Throat† | 13 | 14.3 | 21 | 18.4 | 3 | 27.3 | 27 | 20.5 | 0.262 |
Nose‡ | 10 | 11.0 | 12 | 10.5 | 1 | 9.1 | 18 | 13.6 | 0.468 |
Eye§ | 21 | 23.1 | 19 | 16.7 | 2 | 18.2 | 37 | 28.0 | 0.139 |
Lung∥ | 34 | 37.4 | 33 | 28.9 | 4 | 36.4 | 36 | 27.3 | 0.208 |
Skin** | 5 | 5.5 | 19 | 16.7 | 1 | 9.1 | 13 | 9.8 | 0.977 |
Heart++ | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | - |
Nerve‡‡ | 9 | 9.9 | 8 | 7.0 | 0 | 0.0 | 13 | 9.8 | 0.840 |
Stomach‡‡‡ | 0 | 0.0 | 7 | 6.1 | 0 | 0.0 | 3 | 2.3 | 0.941 |