Table 5 Demographic and occupational factors in relation to pulmonary function tests among flour mills workers, Assiut
From: Assessment of respiratory health status of workers in flour mills of Assiut
Abnormal PFTs (n = 67) | Normal PFTs (n = 117) | P-value* | |||
|---|---|---|---|---|---|
No | % | No | % | ||
Age: | 0.005* | ||||
< 40 years old | 28 | 41.8 | 74 | 63.2 | |
≥ 40 years old | 39 | 58.2 | 43 | 36.8 | |
Education: | 0.032* | ||||
Illiterate, read and write | 29 | 43.3 | 31 | 26.5 | |
Primary and preparatory | 14 | 20.9 | 26 | 22.2 | |
Secondary and technical | 20 | 29.9 | 38 | 32.5 | |
University | 4 | 6.0 | 22 | 18.8 | |
Residence: | 0.365 | ||||
Urban | 35 | 52.2 | 53 | 45.3 | |
Rural | 32 | 47.8 | 64 | 54.7 | |
Smoking: | 0.073 | ||||
Smoker | 53 | 79.1 | 78 | 66.7 | |
Nonsmoker | 14 | 20.9 | 39 | 33.3 | |
Duration of work: | 0.002* | ||||
< 10 year | 16 | 23.9 | 55 | 47.0 | |
≥ 10 years | 51 | 76.1 | 62 | 53.0 | |
Level of exposure: | 0.494 | ||||
High exposure level | 39 | 58.2 | 62 | 53.0 | |
Low exposure level | 28 | 41.8 | 55 | 47.0 | |
Respiratory problems: | 0.0001* | ||||
Yes | 40 | 59.7 | 38 | 32.5 | |
No | 27 | 40.3 | 79 | 67.5 | |