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 |