Regression coefficients relating percent predicted lung function parameters to industrial air emissions within 25 km of residence, by sex, household population aged 6 to 18, 2007 to 2011
Table 3Industrial air emission/Sex | FVC | FEV1 | FEV1/FVC | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
beta | 95% confidence interval | p-value | beta | 95% confidence interval | p-value | beta | 95% confidence interval | p-value | ||||
from | to | from | to | from | to | |||||||
PM2.5 | ||||||||||||
Males | ||||||||||||
Model 1 | -0.003 | -0.007 | 0.001 | 0.133 | -0.006 | -0.010 | -0.002 | 0.005Note * | -0.003 | -0.005 | 0.000 | 0.021Note * |
Model 2 | Note ...: not applicable | Note ...: not applicable | Note ...: not applicable | Note ...: not applicable | -0.005 | -0.009 | -0.002 | 0.004Note * | -0.003 | -0.005 | -0.001 | 0.017Note * |
Model 3 | Note ...: not applicable | Note ...: not applicable | Note ...: not applicable | Note ...: not applicable | -0.005 | -0.009 | -0.001 | 0.008Note * | -0.003 | -0.005 | 0.000 | 0.025Note * |
Model 4 | Note ...: not applicable | Note ...: not applicable | Note ...: not applicable | Note ...: not applicable | -0.005 | -0.009 | -0.001 | 0.009Note * | -0.003 | -0.005 | 0.000 | 0.028Note * |
Model 5 | Note ...: not applicable | Note ...: not applicable | Note ...: not applicable | Note ...: not applicable | -0.005 | -0.009 | -0.001 | 0.010Note * | -0.003 | -0.005 | 0.000 | 0.025Note * |
Females | ||||||||||||
Model 1 | -0.002 | -0.005 | 0.001 | 0.157 | -0.003 | -0.006 | 0.000 | 0.060 | -0.001 | -0.004 | 0.002 | 0.546 |
NOx | ||||||||||||
Males | ||||||||||||
Model 1 | 0.000 | -0.001 | 0.000 | 0.307 | 0.000 | -0.001 | 0.000 | 0.101 | 0.000 | 0.000 | 0.000 | 0.155 |
Females | ||||||||||||
Model 1 | 0.000 | -0.001 | 0.000 | 0.646 | 0.000 | -0.001 | 0.000 | 0.080 | 0.000 | 0.000 | 0.000 | 0.099 |
... not applicable
FEV1 = 1-sec forced expiratory volume PM2.5 = fine particulate matter NOx = nitrogen oxides Model 1 = unadjusted; Model 2 = Model 1 + respiratory condition/symptom; Model 3 = Model 2 + household income; Model 4 = Model 3 + short-term PM2.5; Model 5 = Model 4 + age Source: 2007 to 2009 and 2009 to 2011 Canadian Health Measures Survey, combined. |
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