Subgroups of pre-pregnancy smokers by use of quitting methods | N | Smoking amount in late pregnancy | |||||
---|---|---|---|---|---|---|---|
Weighted row % | Adjusted odds ratio (95% confidence interval) * | ||||||
Abstinent | Reduced amount compared to pre-pregnancy | Not reduced | (Odds of abstinent) / (Odds of not reduced) | (Odds of reduced) / (Odds of not reduced) | (Odds of abstinent or reduced) / (Odds of not reduced) | ||
“Not trying to quit” | 677 | 44.3 | 34.2 | 21.4 | reference | reference | reference |
“Quit on my own” | 1856 | 64.8 | 24.8 | 10.5 | 4.85 (2.82–8.35) | 2.46 (1.31–4.60) | 3.02 (1.85–4.92) |
“Vaping” | 109 | 31.3 | 30.2 | 38.5 | 0.62 (0.23–1.70) | 0.43 (0.14–1.35) | 0.54 (0.23–1.31) |
“Wide-ranging methods” | 512 | 35.7 | 46.8 | 17.5 | 1.76 (0.73–4.25) | 1.80 (0.84–3.89) | 1.53 (0.77–3.04) |