| Respiratory symptoms | Roundabouts n (%) | Outside roundabouts n (%) | Total n (%) | p-value | ||
| Cough |
|
|
| <0.0001 | ||
|
| Yes | 41 (78.85) | 52 (36.62) | 93 (47.94) |
| |
|
| No | 11 (21.15) | 90 (63.38) | 101 (52.06) | ||
| Spits from the chest |
|
|
| <0.01 | ||
|
| Yes | 19 (36.54) | 22 (15.49) | 41 (21.13) |
| |
|
| No | 33 (63.46) | 120 (84.51) | 153 (78.87) | ||
| Whistles |
|
|
| 0.017 | ||
|
| Yes | 12 (23.08) | 14 (9.86) | 26 (13.40) |
| |
|
| No | 40 (76.92) | 128 (90.14) | 168 (86.60) | ||