Clinical Study
Prevalence of Occupational Asthma and Respiratory Symptoms in Foundry Workers
Table 3
The prevalance of respiratory symptoms among the foundry workers according to the use of protective mask.
| Parameter | Presence of protective mask () | Absence of protective mask () | Total () | P |
| Respiratory symptoms (any one or more) | 44 (24.7%) | 38 (36.5%) | 82 | 0.039 | Occupational asthma | 19 (10.6%) | 29 (27.8%) | 48 | 0.001 |
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