What factors moderate pregnant women quitting smoking at 4 weeks quit? A consideration of the value of specialised services in improving 4 week quit rates
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Smoking during pregnancy carries multiple risks for mother and baby. Sadly, pregnant women form one of the most ‘hard to reach’ groups to reach with smoking cessation intervention. Specialist services aimed to help this group quit include intensive motivational interviewing techniques, more patient contact, and are generally delivered through home visits. Such services have displayed increased quit rates. Local authorities across England, especially in areas where smoking at time of delivery (SATOD) is high, often commission such services.
The current presentation will consider which of the following variables moderate the chance of pregnant women quitting smoking at 4 weeks; age, number of weeks pregnant (NWP), specialist service support (SpS), level of deprivation (LoD), nicotine dependence as measured by the Fagerstrom score, and mental health condition. Observational data from one service was analysed.
A generalised linear mixed model (GLMM) analysis, incorporating 4-week Carbon Monoxide (CO) validated quit as a response, revealed a number of statistically significant predictors of the odds of a successful 4 week quit (4WQ). These were as follows, with odds ratios and 95% confidence intervals – NWP: 0.98 (0.96,0.998), nicotine dependency: 0.90 (0.84, 0.97), LoD: 1.11 (1.03, 1.20) and SpS: 2.47 (1.36, 4.51) for users of specialist v non-specialist service. These results imply pregnant women who receive SpS are more likely to quit at 4 weeks, supporting previous findings.
These results will be considered and wider implications discussed in this presentation.
