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Table 5 Association between lung functions with air pollutant levels and other exposures sources among infant residents in Salamanca, Guanajuato 2004 - 2005

From: Impact of air pollution on pulmonary function and respiratory symptoms in children. Longitudinal repeated-measures study

  Lung function
  FVC β (95%CI) FEV1 β (95%CI) PEF β (95%CI) FEV1/FVC β (95%CI)
O3 (μg/m 3) -0.0746 (-0.1018, -0.0474)* -0.0046 (-0.0064, -0028)* -0.0160 (-0.0219, -0.0101)* 0.0578 (-0.0048, 0.1205)
SO2 (μg/m 3) -0.0248 (-0.0426, -0.0069)* -0.0029 (-0.004, -0.0017)* -0.0103 (-0.0142, -0.0064)* -0.0278 (-0.069, 0.0133)
NO2 (μg/m 3) 0.1572 (0.0648, 0.2496)* 0.0132 (0.0070, 0.0193)* 0.0484 (0.2840, 0.6869)* 0.0284 (-0.1845, 0.2414)
PM10 (μg/m 3) -0.0142 (-0.0274, -0.0009)* -0.0028 (-0.0036, -0.0019)* -0.1519 (-0.1807, -0.1230)* -0.0691 (-0.0996, -0.0385)*
Temperature (°C) 0.3220 (0.0148, 0.4959)* 0.0263 (0.0147, 0.0379)* 1.1837 (0.805, 1.5623)* 0.03621 (-0.3635, 0.4359)
School -0.3019 (-0.5400, -0.0638)* -0.2800 (-0.1163, 0.0759) -1.2844 (-1.8012, -0.7675)* -1.8346 (-7.2676, 3.5982)
Atopy -0.0252 (-0.1440, 0.0936) -0.0201 (-0.1163, 0.0759) 0.0021 (-0.2371, 0.2415) -0.4488 (-2.6628, 1.7640)
Allergen 0.0068 (-0.0550, 0.0686) -0.0165 (-0.0665, 0.0335) -0.0306 (-0.1552, 0.0939) -0.4686 (-1.6205, 0.6832)
Fossil fuels -0.0186 (-0.0798, 0.0425) -0.0142 (-0.0637, 0.0352) -0.1179 (-0.2412, 0.0052) 0.1946 (-0.9447, 1.339)
Passive smoking -0.0219 (-0.0868, 0.0493) -0.0276 (-0.0801, 0.0248) -0.0966 (-0.2272, 0.0340) -0.3535 (-1.5614, 0.8544)
  1. Beta coefficients by 10 μg/m3 increase of O3, SO2, NO2 and PM10, and 10°C increase in temperature, obtained with multilevel mixed models with slope as random effects, adjusted for height, BMI, sex, age, fossil fuel and passive smoking; clustering by child
  2. * P-value < 0.05