From: Smoking cessation advice recorded during pregnancy in United Kingdom primary care
 | Pregnant smokers (n = 27,959) | Pregnant smokers with smoking cessation advice (n = 7,716) | Unadjusted | Adjusted | |||
---|---|---|---|---|---|---|---|
Age at conception | Â | n | % | OR (95% CI) | p-value | OR (95% CI) | p-value |
15–19 | 3,169 | 957 | 30.2 | 1.19 (1.08-1.32) | 0.008 | 1.21 (1.10-1.35) | 0.001 |
20–24 | 7,738 | 2,127 | 27.5 | 1.05 (0.96-1.14) |  | 1.04 (0.96-1.13) | |
25–29 | 7,542 | 2,006 | 26.6 | 1 |  | 1 | |
30–34 | 5,639 | 1,535 | 27.2 | 1.03 (0.95-1.12) |  | 1.05 (0.96-1.14) | |
35–39 | 3,166 | 872 | 27.5 | 1.05 (0.95-1.15) |  | 1.07 (0.97-1.17) | |
40–44 | 671 | 203 | 30.3 | 1.20 (1.00-1.43) |  | 1.18 (0.98-1.41) | |
45-49 | 34 | 16 | 47.1 | 2.45 (1.21-4.98) | Â | 2.37 (1.11-5.10) | |
Townsend score | Â | Â | Â | Â | Â | Â | Â |
Quintile 1 (most affluent) | 3,047 | 711 | 23.3 | 1.00 | <0.001* | 1.00 | <0.001* |
Quintile 2 | 3,745 | 1,005 | 26.8 | 1.21 (1.07-1.35) | Â | 1.19 (1.06-1.34) | |
Quintile 3 | 5,532 | 1,480 | 26.8 | 1.20 (1.06-1.36) | Â | 1.18 (1.04-1.35) | |
Quintile 4 | 7,191 | 2,075 | 28.9 | 1.33 (1.16-1.53) | Â | 1.29 (1.13-1.48) | |
Quintile 5 (most deprived) | 6,583 | 1,989 | 30.2 | 1.42 (1.17-1.72) | Â | 1.38 (1.14-1.68) | |
Missing | 1,861 | 456 | 24.5 | 1.07 (0.89-1.28) | Â | 1.03 (0.85-1.24) | |
Body mass index | Â | Â | Â | Â | Â | Â | Â |
Underweight (<18.0) | 11,893 | 3,196 | 26.9 | 1.10 (0.97-1.25) | <0.001 | 1.08 (0.95-1.22) | <0.001 |
Normal (18.0-24.9) | 1,334 | 385 | 28.9 | 1 | Â | 1 | |
Overweight (25.0-29.9) | 5,689 | 1,645 | 28.9 | 1.11 (1.03-1.19) | Â | 1.09 (1.01-1.18) | |
Obese (≥30) | 4,218 | 1,252 | 29.7 | 1.15 (1.06-1.24) |  | 1.08 (0.99-1.16) | |
Missing | 4,825 | 1,238 | 25.7 | 0.94 (0.87-1.01) | Â | 0.92 (0.83-1.01) | |
Asthma | 3,317 | 1,368 | 41.2 | 2.02 (1.85-2.2) | <0.001 | 1.97 (1.80 - 2.16) | <0.001 |
Hypertension | 580 | 200 | 34.5 | 1.39 (1.16-1.67) | <0.001 | 1.32 (1.09 - 1.60) | <0.001 |
Diabetes | 635 | 208 | 32.8 | 1.29 (1.07-1.55) | 0.008 | 1.24 (1.03 - 1.50) | 0.015 |
Mental illness | 4,390 | 1,314 | 29.9 | 1.15 (1.06-1.24) | 0.001 | 1.09 (1.01 - 1.18) | 0.019 |