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Table 4 Estimates of association between ambient and traffic-related air pollutants and adult attaineda CIMT (μm), adjusted for personal smoking, adult BMI, and parental education (N = 70)

From: Childhood traffic-related air pollution and adverse changes in subclinical atherosclerosis measures from childhood to adulthood

  Estimate (95% CI) per 1 SD increase in exposureb P-value
Ambient Pollutants (monthly average)
 Daily 8-h max O3 concentration (ppb) −10.35 (− 27.54, 6.83) 0.23
 24-h average PM2.5 concentration (μg/m3) −1.62 (− 18.38, 15.14) 0.85
 24-h average PM10 concentration (μg/m3) −2.81 (− 19.54, 13.90) 0.74
 24-h average NO2 concentration (μg/m3) 6.43 (− 10.30, 23.16) 0.45
Local Traffic-Related Pollutants/Measures
 Total NOx (ppb) 20.60 (2.87, 38.36) 0.02
 Freeway NOx (ppb) 21.09 (3.33, 38.85) 0.02
 Non-Freeway NOx (ppb) 6.25 (−10.84, 23.33) 0.47
 Traffic Density (within 300 m buffer) 23.01 (6.38, 39.42) 0.007
  1. aAdult attained CIMT represents absolute value of CIMT measured at time of young adult assessment
  2. bEstimates are each scaled to represent a change in beta for a 1 standard deviation (SD) increase in exposure to the corresponding pollutant