Results of the questionnaire
| Small weaving | Medium weaving | Big weaving | Spinning | Compact | Total p value | |
|---|---|---|---|---|---|---|
| Worker | 289 | 125 | 110 | 80 | 196 | 800 |
| Symptoms % | ||||||
| Fever | 22.5 | 24.8 | 11.8 | 12.5 | 6.1 | p (χ2)<0.001 |
| Shortness of breath | 28.7 | 22.4 | 10.9 | 17.5 | 5.6 | p (χ2)<0.001 |
| Chest tightness | 41.5 | 36.8 | 32.7 | 31.2 | 10.7 | p (χ2)<0.001 |
| Dry cough | 30.1 | 36 | 26.4 | 31.3 | 12.2 | p (χ2)<0.001 |
| Mucous cough | 6.9 | 4 | 5.5 | 8.8 | 0.5 | p (χ2)<0.001 |