Table 8 |
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|
Stratification on smoking. COPD diagnosis in relation to traffic among smokers/ex-smokers and non-smokers. |
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|
Smokers/ex-smokers |
Non-smokers |
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|
|
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|
n |
COPD D |
OR a |
n |
COPD D |
OR a |
||
|
Heavy traffic |
No |
3149 |
167(5.3%) |
1.00 |
2892 |
76(2.6%) |
1.00 |
|
Yes |
1861 |
130(7.0%) |
1.43(1.13–1.82) |
1414 |
42(3.0%) |
1.19(0.81–1.76) |
|
|
Heaviest road within <100 m |
no heavy road |
1951 |
104(5.3%) |
1.00 |
1804 |
49(2.7%) |
1.00 |
|
<2 cars/min |
1185 |
67(5.7%) |
1.06(0.77–1.45) |
1050 |
28(2.7%) |
0.99(0.62–1.59) |
|
|
2–5 cars/min |
992 |
52(5.2%) |
0.99(0.70–1.40) |
828 |
19(2.3%) |
0.88(0.51–1.51) |
|
|
6–10 cars/min |
522 |
44(8.4%) |
1.56(1.08–2.26) |
364 |
16(4.4%) |
1.64(0.92–2.94) |
|
|
>10 cars/min |
344 |
28(8.1%) |
1.84(1.18–2.86) |
234 |
6(2.6%) |
1.15(0.48–2.75) |
|
|
NOx (μg/m3) |
0–8 |
969 |
47(4.9%) |
1.00 |
886 |
27(3.0%) |
1.00 |
|
8–11 |
971 |
47(4.8%) |
0.96(0.63–1.46) |
884 |
21(2.4%) |
0.77(0.43–1.37) |
|
|
11–14 |
945 |
63(6.7%) |
1.35(0.92–2.00) |
910 |
24(2.6%) |
0.92(0.52–1.61) |
|
|
14–19 |
1037 |
60(5.8%) |
1.14(0.92–2.00) |
821 |
23(2.8%) |
0.85(0.48–1.50) |
|
|
>19 |
1072 |
78(7.3%) |
1.61(1.11–2.35) |
779 |
23(3.0%) |
1.12(0.63–1.98) |
|
|
Test för |
Heavy traffic*eversmoker |
p = 0.47 |
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|
Interaction |
Heaviestroad100 m*eversmoker |
p = 0.89 |
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|
NOx*eversmoker |
p = 0.83 |
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|
|
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|
a Adjusted for age and sex. [OR(95%CI)]. |
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|
Lindgren et al. International Journal of Health Geographics 2009 8:2 doi:10.1186/1476-072X-8-2 |
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