Table 1

Referrals of pregnant smokers received by stop smoking services and outcomes before and after implementation of the ‘opt-out’ referral pathway

Before: May–October 2012After: May–October 2013Difference in proportions (95% CI), (p value)
NPer cent95% CINPer cent95% CI
Women receiving antenatal care22872293NA
Referrals received by stop smoking services29012.711.4 to 14.142118.416.8 to 20.05.7 (3.6 to 7.8)†
Women who set a quit date572.51.9 to 3.21215.34.4 to 6.32.8 (1.7 to 3.9)†
Women who reported stopping smoking 4 weeks after the quit date462.01.5 to 2.7934.13.3 to 4.92.1 (1.1 to 3.1)†
  • †p<0.001.