Table 5. Cross-sectional associations between exposure to a motorway and Warwick-Edinburgh Mental Well-being Scale (short version) score at T2.
| Beta coefficient (95% CI) | ||||||
|---|---|---|---|---|---|---|
| Exposure | Outcome: SWEMWBS score | |||||
| n | Model 1 | n | Model 2 | n | Model 3 | |
| Area: East (reference: North) | 1318 | -0.2 (-0.7, 0.4) | 1310 | -0.2 (-0.7, 0.4) | 1253 | 0.0 (-0.5, 0.5) |
| Proximity within East study area | 437 | -0.8 (-1.4, -0.1)* | 433 | -0.8 (-1.4, -0.1)* | 411 | -0.4 (-1.0, 0.2) |
| Area: South (reference: North) | 1318 | 0.1 (-0.4, 0.7) | 1310 | 0.1 (-0.4, 0.7) | 1253 | 0.0 (-0.5, 0.5) |
| Proximity within South study area | 419 | -1.0 (-1.8, -0.2)* | 418 | -1.0 (-1.8, -0.2)* | 404 | -0.1 (-0.9, 0.7) |
CI–confidence interval; n–number; SWEMWBS–Warwick-Edinburgh Mental Well-being Scale (short version)
*p<0.05
**p<0.01
***p<0.001
Model 1 is unadjusted. Model 2 is adjusted for age and sex. Model 3 is adjusted for variables in model 2 plus home ownership, car ownership, working status, perceived financial strain, presence of a chronic condition and years lived in the local area. North–study area containing no motorway infrastructure; East–study area containing existing M8 motorway; South–study area containing new M74 motorway. Proximity refers to the distance from each participant’s home address in a straight line to the nearest motorway infrastructure.