Table 3 Individual-level SEP within area-level SEP variables (n = 16,615)
From: Residential proximity to major roads and adverse birth outcomes: a hospital-based study
| Â | Area-level SEP at census regions | ||
|---|---|---|---|
| Â | Q1 (affluent) | Q2 (middle) | Q3 (poor) |
| Â | Proportion of professional workers | ||
Household occupation | Â | Â | Â |
  Professional workers (n = 1853) | 850 (45.9) | 545 (29.4) | 458 (24.7) |
  Employees (n = 13062) | 4103 (31.4) | 4414 (33.8) | 4545 (34.8) |
  Self-employed/Part-time workers/Unemployed (n = 951) | 290 (30.5) | 317 (33.3) | 344 (36.2) |
| Â | Proportion of production or transportation workers | ||
Household occupation | Â | Â | Â |
  Professional workers (n = 1853) | 811 (43.8) | 564 (30.4) | 478 (25.8) |
  Employees (n = 13062) | 4032 (30.9) | 4473 (34.2) | 4557 (34.9) |
  Self-employed/Part-time workers/Unemployed (n = 951) | 355 (37.3) | 317 (33.3) | 279 (29.3) |