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Table 4 Associationsa between Rint and estimated annual average air pollution concentrations at the birth address and current home address from single-pollutant models

From: Air pollution and airway resistance at age 8 years – the PIAMA birth cohort study

Pollutant [increment]

Model 1b

Model 2c

β

(95% CI)

p-value

β

(95% CI)

p-value

Birth address

 

N = 975

  

N = 869

 

 NO2 [8.4 μg/m3]

0.011

(− 0.001, 0.024)

0.0831

0.005

(− 0.010, 0.021)

0.4770

 NOx [11.2 μg/m3]

0.007

(− 0.002, 0.017)

0.1195

0.002

(−0.008, 0.013)

0.6868

 PM2.5 [1.1 μg/m3]

0.023

(0.007, 0.039)

0.0056

0.017

(−0.001, 0.034)

0.0611

 PM10 [1.3 μg/m3]

0.006

(−0.004, 0.016)

0.2612

0.002

(−0.008, 0.012)

0.7013

 PMcoarse [0.9 μg/m3]

0.003

(−0.008, 0.013)

0.6354

0.002

(−0.007, 0.010)

0.7391

 PM2.5 abs. [0.27 10−5/m]

0.013

(0.001, 0.024)

0.0274

0.008

(−0.004, 0.021)

0.1813

Current addressd

 

N = 965

  

N = 808

 

 NO2 [8.4 μg/m3]

0.022

(0.008, 0.035)

0.0016

0.018

(0.001, 0.035)

0.0334

 NOx [11.2 μg/m3]

0.016

(0.006, 0.026)

0.0025

0.011

(−0.001, 0.022)

0.0781

 PM2.5 [1.1 μg/m3]

0.024

(0.006, 0.042)

0.0106

0.017

(−0.004, 0.039)

0.1079

 PM10 [1.1 μg/m3]

0.012

(0.001, 0.023)

0.0285

0.005

(−0.007, 0.017)

0.4275

 PMcoarse [0.7 μg/m3]

0.006

(−0.004, 0.016)

0.2335

0.000

(−0.011, 0.011)

0.9974

 PM2.5 abs. [0.27 10−5/m]

0.020

(0.007, 0.032)

0.0017

0.014

(0.000, 0.029)

0.0496

  1. aAssociations are presented as mean difference in Rint per interquartile range increase in air pollution exposure (β) with 95% confidence intervals (CI)
  2. bAdjusted for sex and age
  3. cAdjusted for sex, age, height, weight, parental education, parental allergies, maternal smoking during pregnancy, smoking in the child’s home, mold/dampness in living room and/or child’s bedroom, pets in the child’s home, use of gas for cooking, unvented gas water heater, older siblings, Dutch nationality, season; average air pollution concentration (NO2 in models with long-term NO2 and NOx; PM10 in models with long-term PM2.5, PM10, and PMcoarse; black smoke in models with long-term PM2.5 absorbance), ambient temperature and relative humidity on the day of the Rint test
  4. dAt the time of the Rint measurements
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Environmental Health

ISSN: 1476-069X