Table 2 Number and percentages of individual/area-level SEP and personal characteristics by proximity to major roads (≤200 m; >200 m) (n = 16,615)
From: Residential proximity to major roads and adverse birth outcomes: a hospital-based study
| Â | Proximity to major roads | |
|---|---|---|
|  | ≤200 m | >200 m |
| Â | n (%) | n (%) |
Individual SEP or personal characteristics | Â | Â |
Household occupation | Â | Â |
  Professional workers (n = 1854) | 76 (4.1) | 1778 (95.9) |
  Employees (n = 13070) | 767 (5.9) | 12303 (94.1) |
  Self-employed/Part-time workers/Unemployed (n = 952) | 57 (6) | 895 (94) |
Maternal smoking | Â | Â |
  Never smoked (n = 15736) | 897 (5.7) | 14839 (94.3) |
  Ex- or current-smoker (n = 686) | 46 (6.7) | 640 (93.3) |
Maternal alcohol drinking | Â | Â |
  Non-drinker (n = 15674) | 902 (5.8) | 14772 (94.2) |
  Drinker (n = 757) | 42 (5.5) | 715 (94.5) |
Paternal smoking | Â | Â |
  Never smoked (n = 8650) | 477 (5.5) | 8173 (94.5) |
  Ex or current-smoker (n = 7152) | 436 (6.1) | 6716 (93.9) |
Maternal obesity | Â | Â |
  Not obese (n = 15215) | 855 (5.6) | 14360 (94.4) |
  Obese (n = 1348) | 91 (6.8) | 1257 (93.2) |
Maternal diabetes | Â | Â |
  No diabetes (n = 15983) | 913 (5.7) | 15070 (94.3) |
  Diabetes (n = 617) | 40 (6.5) | 577 (93.5) |
Maternal hypertension | Â | Â |
  No hypertension (n = 15707) | 908 (5.8) | 14799 (94.2) |
  Hypertension (n = 893) | 45 (5) | 848 (95) |
Area-level SEP at census regions | Â | Â |
Proportion of professional workers | Â | Â |
  Q1 (affluent) (n = 5453) | 182 (3.3) | 5271 (96.7) |
  Q2 (middle) (n = 5524) | 401 (7.3) | 5123 (92.7) |
  Q3 (poor) (n = 5628) | 370 (6.6) | 5258 (93.4) |
Proportion of production or transportation workers | Â | Â |
  Q1 (affluent) (n = 5406) | 84 (1.6) | 5322 (98.4) |
  Q2 (middle) (n = 5589) | 452 (8.1) | 5137 (91.9) |
  Q3 (poor) (n = 5610) | 417 (7.4) | 5193 (92.6) |