Table 3.
Multivariate linear regression analyses for percent difference (95% CI) in maximum and mean CIMT at LCCA and RCCA and for both combined (CCA) in association with air pollution exposures.
| Exposure (exposure increment) | CIMT at LCCA | CIMT at RCCA | Combined CIMT |
|---|---|---|---|
| Maximum CIMT | |||
| PM2.5abs (10–5/m) | 4.23 (0.32, 8.13)* | 1.63 (–1.98, 5.23) | 2.94 (–0.25, 6.14) |
| PM2.5 (5 μg/m3) | –0.28 (–1.68, 1.12) | –0.30 (–1.00, 1.58) | 0.001 (–1.15, 1.15) |
| PM10 (10 μg/m3) | 3.72 (0.32, 7.11)* | 1.59 (–1.54, 4.72) | 2.66 (–0.11, 5.44) |
| NO2 (20 μg/m3) | 2.81 (0.32, 5.31)* | 1.79 (–0.52, 4.09) | 2.31 (0.26, 4.35)* |
| NOx (10 μg/m3) | 0.74 (0.08, 1.41)* | 0.29 (–0.32, 0.90) | 0.52 (–0.02, 1.06) |
| Mean CIMT | |||
| PM2.5abs (10–5/m) | 4.19 (0.38, 8.00)* | 0.61 (–2.41, 5.11) | 2.78 (–0.50, 6.07) |
| PM2.5 (5 μg/m3) | –0.27 (–1.64, 1.10) | 0.16 (–1.19, 1.51) | –0.05 (–1.23, 1.12) |
| PM10 (10 μg/m3) | 3.58 (0.27, 6.89)* | 1.76 (–1.51, 5.02) | 2.68 (0.17, 5.53)* |
| NO2 (20 μg/m3) | 1.98 (–0.46, 4.42) | 1.63 (–0.77, 4.03) | 1.81 (–0.30, 3.91) |
| NOx (10 μg/m3) | 0.51 (–0.14, 1.16) | 0.16 (–0.48, 0.80) | 0.34 (–0.22, 0.90) |
| Adjusted for age, sex, BMI, SBP, LDL-C, lipid-lowering treatment (yes/no), DM (yes/no), education (< or ≥ 12 years), and ever versus never smoking history. *p < 0.05. | |||