Table 2.
Distance to major roadway, m, median (IQRw)a | 214 (363) |
---|---|
Distance to roadway in categoriesa, % | |
<100 m | 31 |
100-<200 m | 16 |
200-<400 m | 24 |
400-<1,000 m | 27 |
PM2.5, μg/m3, median (IQRw) | 9.7 (1.6) |
321 participants (11.7 %) who lived ≥1,000m from a major roadway were excluded from the distance to roadway primary analyses. IQRw indicates interquartile range width.