Table 2 |
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|
Respiratory health risk factors by SES (educational level) |
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|
Respiratory health risk factors |
SES: all grades |
<10 years |
= 10 years of school education |
>10 years |
P-value1 of linear trend effect of SES |
||||
|
|
|
|
|
|
|
||||
|
N |
% |
N |
% |
N |
% |
N |
% |
||
|
|
|||||||||
|
Occupational exposure2 |
1251 |
14.2 |
318 |
16.4 |
637 |
15.1 |
296 |
10.1 |
0.0296 |
|
Current smoker |
17.5 |
20.3 |
17.9 |
13.9 |
0.0368 |
||||
|
Non-smoker with ETS |
1243 |
36.6 |
315 |
38.4 |
632 |
37.3 |
296 |
33.1 |
0.1780 |
|
Non-smoker without ETS |
45.9 |
41.3 |
44.8 |
53.0 |
0.0038 |
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|
Distance to major road with >10.000 cars/day 0–100 m |
1216 |
22.1 |
304 |
26.0 |
624 |
19.9 |
288 |
22.9 |
0.3490 |
|
|
|||||||||
|
N |
AM |
N |
AM |
N |
AM |
N |
AM |
||
|
SD |
SD |
SD |
SD |
||||||
|
|
|||||||||
|
PM10 5-years mean |
1254 |
49.4 |
318 |
50.0 |
637 |
49.7 |
296 |
48.2 |
<0.0001 |
|
4.6 |
4.3 |
4.4 |
5.2 |
||||||
|
NO2 5-years mean |
1254 |
49.2 |
318 |
49.1 |
637 |
49.3 |
296 |
49.4 |
0.3941 |
|
4.3 |
4.6 |
4.1 |
4.2 |
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|
|
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|
1 p-value of the logistic regression 2 Dust, gases, vapours, wet conditions or extreme temperature Abbreviations: NO2: Nitrogen dioxide; PM10: Particulate matter with aerodynamic diameter of ≤ 10 μm, calculated as PM10 = 0.71*TSP; TSP: Total suspended particles; AM: Arithmetic mean; SD: Standard deviation |
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|
Schikowski et al. BMC Public Health 2008 8:179 doi:10.1186/1471-2458-8-179 |
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