Table 2 Silicosis occupational factors of the study population
Characteristic | Total number N = 114 | Positive N = 36 | % | Negative N = 78 | % | P | |
|---|---|---|---|---|---|---|---|
Silicosis categories | 0.440 | ||||||
Early-stage | 12 | 2 | 16.7 | 10 | 83.3 | ||
Stage 1 | 86 | 29 | 33.7 | 57 | 66.3 | ||
Stage 2 and 3 | 13 | 5 | 38.5 | 8 | 61.5 | ||
Work categories | 0.020 | ||||||
Others | 10 | 1 | 10.0 | 9 | 90.0 | ||
Mining | 36 | 7 | 19.4 | 29 | 80.6 | ||
Tunneling | 67 | 28 | 41.8 | 39 | 58.2 | ||
Work Ventilation condition | 0.959 | ||||||
No | 19 | 6 | 31.6 | 13 | 68.4 | ||
Yes | 87 | 28 | 32.2 | 59 | 67.8 | ||
Occupational health education | 0.518 | ||||||
No | 48 | 14 | 29.2 | 34 | 70.8 | ||
Yes | 57 | 20 | 35.1 | 37 | 64.9 | ||
Wearing Protective Equipment | 0.473 | ||||||
No | 20 | 5 | 25.0 | 15 | 75.0 | ||
Yes | 81 | 27 | 33.3 | 54 | 66.7 | ||
Year of Silicosis exposure (years) | 0.866 | ||||||
< 25 | 32 | 10 | 31.2 | 22 | 68.8 | ||
>=25 | 79 | 26 | 32.9 | 53 | 67.1 |