Table 4 Odds ratios (ORs) and their 95% confidence intervals (CIs) between proximity to major roads and preterm births (PTB) or term low birth weight (LBW)
From: Residential proximity to major roads and adverse birth outcomes: a hospital-based study
| Model 1 | Model 2‡ | Model 3§ | Model 4** | |
|---|---|---|---|---|
| Crude model | Adjusted model | Individual SEP adjusted | Individual/area-level SEP adjusted | |
| OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | |
| PTB* | ||||
| Proximity to major roads | ||||
| >200 m | 1 | 1 | 1 | 1 |
| ≤200 m | 1.6 (1.3, 1.9) | 1.6 (1.4, 2.0) | 1.6 (1.3, 1.9) | 1.5 (1.3, 1.9) |
| Proximity to major roads | ||||
| >200 m | 1 | 1 | 1 | 1 |
| 50-200 m | 1.5 (1.3, 1.9) | 1.6 (1.3, 2.0) | 1.6 (1.3, 1.9) | 1.5 (1.2, 1.8) |
| ≤50 m | 2.0 (1.2, 3.1) | 1.9 (1.2, 3.1) | 1.8 (1.1, 3.0) | 1.7 (1.0, 2.9) |
| Term LBW† | ||||
| Proximity to major roads | ||||
| >200 m | 1 | 1 | 1 | 1 |
| ≤200 m | 1.2 (1.0, 1.6) | 1.2 (0.9, 1.5) | 1.2 (1.0, 1.6) | 1.2 (0.9, 1.6) |
| Proximity to major roads | ||||
| >200 m | 1 | 1 | 1 | 1 |
| 50-200 m | 1.2 (1.0, 1.6) | 1.2 (0.9, 1.5) | 1.2 (0.9, 1.6) | 1.2 (0.9, 1.6) |
| ≤50 m | 1.3 (0.7, 2.5) | 1.4 (0.7, 2.8) | 1.5 (0.8, 3.1) | 1.5 (0.7, 3.0) |