Please see attached Information on the prevalence of smoking in pregnancy and also the Cochrane review of interventions.

thumbnail of Five year trends in maternal smoking Coombe Hospital 2011 to 2015. Feb 2017 thumbnail of tobaccocontrol-2016-053476.full Evaluation of a complex healthcare intervention to increase smoking cessation in pregnant women, interrupted time series analysis with economic evaluationthumbnail of Cochrane Review 2017 Psychosocial interventions for supporting women to stop smoking in pregnancy