From: Increased traffic exposure and negative birth outcomes: a prospective cohort in Australia
Traffic measure | Dependent variable | Road type | OR | 95% CI | P-value |
---|---|---|---|---|---|
Distance to road (km) | Mother's | Freeway | 0.95 | 0.91,1.00 | 0.04 |
 | smoking | Highway | 0.97 | 0.94, 1.01 | 0.12 |
 |  | Main road | 1.01 | 0.83, 1.23 | 0.94 |
 | Household | Freeway | 0.94 | 0.91, 0.98 | 0.004 |
 | smoking | Highway | 0.99 | 0.96, 1.03 | 0.70 |
 |  | Main road | 1.14 | 0.97, 1.35 | 0.12 |
 | Mother's | Freeway | 0.99 | 0.95, 1.03 | 0.57 |
 | education | Highway | 1.01 | 0.98, 1.05 | 0.47 |
 |  | Main road | 1.10 | 0.92, 1.32 | 0.29 |
Number of road segments within 400 metres | Mother's smoking | Freeway | 0.83 | 0.59, 1.17 | 0.29 |
 |  | Highway | 1.00 | 0.82, 1.24 | 0.96 |
 |  | Main road | 1.02 | 0.98, 1.06 | 0.31 |
 | Household | Freeway | 0.91 | 0.72, 1.15 | 0.44 |
 | smoking | Highway | 1.10 | 0.92, 1.31 | 0.29 |
 |  | Main road | 0.99 | 0.96, 1.03 | 0.75 |
 | Mother's | Freeway | 1.03 | 0.83, 1.29 | 0.77 |
 | education | Highway | 1.08 | 0.89, 1.31 | 0.43 |
 |  | Main road | 1.01 | 0.97, 1.05 | 0.53 |