| Asthma symptoms WITHOUT cough or phlegm | Cough or phlegm WITHOUT asthma symptoms | Asthma symptoms WITH cough or phlegm | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
 | n cases | (%) | OR* | 95% CI | n cases | (%) | OR* | 95% CI | n cases | (%) | OR* | 95% CI |
Traffic density | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Absent | 465 | 10.3 | 1.00 | Â | 171 | 3.8 | 1.00 | Â | 99 | 2.2 | 1.00 | Â |
Low | 996 | 10.2 | 1.00 | 0.89–1.13 | 326 | 3.4 | 0.83 | 0.69–1.00 | 232 | 2.4 | 1.12 | 0.88–1.42 |
Moderate | 1,083 | 10.9 | 1.08 | 0.95–1.22 | 397 | 4.0 | 0.92 | 0.75–1.11 | 292 | 2.9 | 1.27 | 1.02–1.57 |
High | 601 | 11.0 | 1.13 | 0.99–1.28 | 281 | 5.2 | 1.14 | 0.92–1.41 | 194 | 3.6 | 1.52 | 1.17–1.96 |
Frequency cars transit | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Never | 254 | 10.5 | 1.00 | Â | 87 | 3.6 | 1.00 | Â | 55 | 2.3 | 1.00 | Â |
Sometimes | 938 | 9.9 | 0.93 | 0.80–1.07 | 308 | 3.3 | 0.91 | 0.72–1.15 | 209 | 2.2 | 0.97 | 0.71–1.34 |
Frequently | 1,129 | 11.0 | 1.03 | 0.89–1.19 | 409 | 4.0 | 1.07 | 0.83–1.36 | 270 | 2.6 | 1.10 | 0.80–1.52 |
Continuously | 823 | 11.0 | 1.07 | 0.92–1.25 | 371 | 5.0 | 1.30 | 1.02–1.67 | 285 | 3.8 | 1.53 | 1.11–2.10 |
Frequency trucks transit | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Never | 1,158 | 10.1 | 1.00 | Â | 398 | 3.5 | 1.00 | Â | 254 | 2.2 | 1.00 | Â |
Sometimes | 1,299 | 10.8 | 1.07 | 0.98–1.17 | 467 | 3.9 | 1.10 | 0.95–1.26 | 345 | 2.9 | 1.27 | 1.09–1.48 |
Frequently | 525 | 11.1 | 1.13 | 1.01–1.26 | 242 | 5.1 | 1.44 | 1.23–1.69 | 157 | 3.3 | 1.51 | 1.21–1.87 |
Continuously | 150 | 11.2 | 1.21 | 1.01–1.46 | 71 | 5.3 | 1.47 | 1.13–1.93 | 61 | 4.5 | 2.11 | 1.58–2.81 |