Table 1.
Pregnancy-level descriptive statistics for both exposures (retailing density and neighbourhood maternal smoking prevalence) broken down by smoking status
| Smoking status | |||
| No (row %) | Yes (row %) | Total (Col %) | |
| Tobacco retailer density (outlets per km2) | |||
| Group 0 (zero outlets) | 1558 (53.67) | 1345 (46.33) | 2903 (5.26) |
| Group 1 (>0 to ≤4.2) | 12 246 (50.00) | 12 244 (50.00) | 24 490 (44.34) |
| Group 2 (>4.2 to ≤10.5) | 10 070 (48.60) | 10 650 (51.40) | 20 720 (37.51) |
| Group 3 (>10.5 to ≤18.9) | 2053 (46.88) | 2326 (53.12) | 4379 (7.93) |
| Group 4 (>18.9) | 1258 (45.88) | 1484 (54.12) | 2742 (4.96) |
| Neighbourhood maternal smoking prevalence | |||
| Group 0 (zero prevalence) | 374 (59.27) | 257 (40.73) | 631 (1.14) |
| Group 1 (>0% to ≤10%) | 4030 (56.29) | 3129 (43.71) | 7159 (12.96) |
| Group 2 (>10% to ≤20%) | 7151 (51.10) | 6844 (48.90) | 13 995 (25.34) |
| Group 3 (>20% to ≤30%) | 7771 (49.82) | 7826 (50.18) | 15 597 (28.24) |
| Group 4 (>30%) | 7859 (44.02) | 9993 (55.98) | 17 852 (32.32) |
| Scottish Index of Multiple Deprivation | |||
| Quintile 1 (most deprived) | 6244 (46.66) | 7137 (53.34) | 13 381 (24.23) |
| Quintile 2 | 6834 (48.20) | 7373 (51.90) | 14 207 (25.72) |
| Quintile 3 | 6096 (50.16) | 6058 (49.84) | 12 154 (22.00) |
| Quintile 4 | 4677 (50.49) | 4586 (49.51) | 9263 (16.77) |
| Quintile 5 (least deprived) | 3334 (53.52) | 2895 (46.48) | 6229 (11.28) |
| Mothers age | |||
| 18–19 | 2058 (44.11) | 2608 (55.89) | 4666 (8.45) |
| 20–24 | 7026 (43.73) | 9039 (56.27) | 16 065 (29.09) |
| 25–29 | 8063 (49.15) | 8341 (50.85) | 16 404 (29.70) |
| 30–34 | 6389 (53.16) | 5630 (46.84) | 12 019 (21.76) |
| 35–39 | 3106 (59.31) | 2131 (40.69) | 5237 (9.48) |
| 40–44 | 525 (63.95) | 296 (36.05) | 821 (1.49) |
| 45+ | 18 (81.82) | 4 (18.18) | 22 (0.04) |
| Urban and rural | |||
| Large urban | 8411 (48.62) | 8887 (51.38) | 17 298 (31.32) |
| Other urban | 11 108 (48.94) | 11 590 (51.06) | 22 698 (41.09) |
| Accessible small town | 2684 (49.81) | 2705 (50.19) | 5389 (9.76) |
| Remote small town | 1108 (48.49) | 1177 (51.51) | 2285 (4.14) |
| Accessible rural | 2709 (51.41) | 2560 (48.59) | 5269 (9.54) |
| Remote rural | 1165 (50.76) | 1130 (49.24) | 2295 (4.16) |
| Total | 27 185 (49.22) | 28 049 (50.78) | 55 234 (100) |