Natural History
of Smoking in Pregnancy
n13 to 21% of female smokers quit when planning to become pregnant or on finding out they are pregnant
n50% cut down when planning to become pregnant or find out they are pregnant
nAn additional 2% to 22% may quit later in their pregnancy.
nRelapse during pregnancy is substantial
–50 - 60 % of those that quit during pregnancy
relapse to smoking within
6 months post-partum
(Edwards,
N., Sims-Jones, 1998)