Table 2.
Frequency of respiratory symptoms in the exposed and referent groups
| Parameter | Exposed group Number (Percent) |
Reference group Number (Percent) |
p-value a | |
|---|---|---|---|---|
| Wheezing | Yes | 16 (80.00) | 4 (20.00) | 0.002 |
| No | 29 (41.40) | 41 (58.60) | ||
| Chest tightness | Yes | 11 (78.60) | 4 (21.40) | 0.020 |
| No | 34 (44.70) | 42 (55.30) | ||
| Coughs | Yes | 9 (90.00) | 1 (10.00) | 0.007 |
| No | 36 (45.00) | 44 (55.00) | ||
| Chronic coughs | Yes | 7 (63.60) | 4 (36.40) | 0.334 |
| No | 38 (48.10) | 41 (51.90) | ||
| Sputum | Yes | 13 (81.20) | 3 (18.80) | 0.006 |
| No | 32 (43.20) | 42 (56.80) | ||
| Shortness of breath | Yes | 16 (72.70) | 6 (27.30) | 0.014 |
| No | 29 (42.60) | 39 (57.40) | ||
| Asthma | Yes | 4 (80.00) | 1 (20.00) | 0.361 |
| No | 41 (48.20) | 44 (51.80) |
Numbers without units are numbers (percent)
aχ2-test