| Table 4: The prevalence of respiratory symptoms among the exposed and unexposed groups. Values are n (%). | ||||||
| Respiratory Symptoms | Exposed group (n=60) | Unexposed group (n=45) | ||||
| SMAW* (n=17) | GMAW† (n=21) | FCAW‡ (n=22) | ||||
| Coughs | 8 (47) | 14 (67) | 5 (23) | 1 (2) | ||
| Coughs with phlegm | 8 (47) | 13 (62) | 6 (27) | 1 (2) | ||
| Wheezing | 3 (18) | 7 (33) | 2 (9) | — | ||
| Shortness of breath | 6 (35) | 11 (52) | 4 (18) | — | ||
| *Shielded metal arc welding; †Gas metal arc welding; ‡Flux cored arc welding | ||||||
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