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)
| 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 |
aAdult attained CIMT represents absolute value of CIMT measured at time of young adult assessment
bEstimates are each scaled to represent a change in beta for a 1 standard deviation (SD) increase in exposure to the corresponding pollutant