Table 3.
Geographical stratification.
| Current asthma, allergica | |||||||
| Malmö | Region outside Malmö | ||||||
| nb | n, % | Adj ORc | nb | n, % | Adj ORc | ||
| Heavy traffic | No | 1586 | 55(3.5%) | 1.00 | 3768 | 128(3.4%) | 1.00 |
| Yes | 1641 | 76(4.6%) | 1.22(0.85–1.75) | 1189 | 57(4.8%) | 1.38(1.00–1.91) | |
| Heaviest road radie <100 m (cars/min) | No road | 517 | 16(3.1%) | 1.00 | 2815 | 100(3.6%) | 1.00 |
| <2 | 917 | 32(3.5%) | 1.15(0.62–2.12) | 1077 | 46(4.3%) | 1.19(0.83–1.71) | |
| 2–5 | 740 | 25(3.4%) | 1.08(0.57–2.05) | 847 | 27(3.2%) | 0.89(0.58–1.37) | |
| 6–10 | 581 | 26(4.5%) | 1.49(0.79–2.82) | 189 | 11(5.8%) | 1.66(0.87–3.18) | |
| >10 | 472 | 32(6.8%) | 1.96(1.05–3.66) | 29 | 1 | - | |
| NOx (ug/m3) | 0–8 | 12 | 0 | - | 1635 | 67(4.1%) | 1.00 |
| 8–11 | 43 | 4 | - | 1612 | 65(4.0%) | 0.99(0.70–1.41) | |
| 11–14 | 499 | 13(2.6%) | 1.00 | 1138 | 38(3.3%) | 0.79(0.52–1.19) | |
| 14–19 | 1197 | 36(3.0%) | 1.12(0.59–2.14) | 457 | 14(3.1%) | 0.74(0.41–1.33) | |
| >19 | 1476 | 78(5.3%) | 1.78(0.97–3.27) | 115 | 1(0.9%) | 0.20(0.03–1.43) | |
| p-trend | 0.019 | p-trend | 0.029 | ||||
Current allergic asthma in the city of Malmö and the region outside.
a Asthma triggered by pollen or furred animals
b Individuals with non-allergic current asthma were excluded from the analysis of allergic current asthma in relation to traffic.
c OR:s, 95% CI, Adjusted for age, sex and smoking