Smoking in pregnancy

Smoking in pregnancy has well known detrimental effects for the growth and development of the baby and health of the mother. Smoking during pregnancy can cause serious pregnancy-related health problems. These include complications during labour and an increased risk of miscarriage, premature birth, stillbirth, low birth-weight and sudden unexpected death in infancy.

On average, smokers have more complications during pregnancy and labour, including bleeding during pregnancy, placental abruption and premature rupture of membranes. Encouraging pregnant women to stop smoking during pregnancy may also help them kick the habit for good, and thus provide health benefits for the mother and reduce exposure to second hand smoke by the infant.

Key findings for Lancashire-14 (annual April 2016 to March 2017)

  • In 2016/17, 16.0% of mothers registered with the eight clinical commissioning groups (CCGs) in Lancashire-14 and 14.5% of those registered in the six Lancashire-12 CCGs are recorded as smokers at the time of delivery (SATOD) (North West 13.2%), both are significantly higher than England (10.5%).[i]
  • The proportion of women SATOD in 2016/17 is similar to 2015/16 (L-14,15.4% and L-12,14.0%), continuing the steady year-on-year decline from a Lancashire-14 average of 21.0% in 2010/11.
  • SATOD is significantly higher in all Lancashire-14 CCGs excluding NHS Chorley and South Ribble CCG, which is similar to England. 
  • Across the Lancashire-14 CCGs, the prevalence ranges from 28.1% in NHS Blackpool CCG to 9.8% in NHS Chorley & South Ribble CCG, which is the only one recording a figure below the national target of 11%.
  • Smoking status is unknown for some maternities and therefore caution should be used when making comparisons with earlier periods and between CCGs. In Lancashire-14, 1.1% of maternities have an unknown smoking status in 2016/17, compared to 2.0% at the national level.
  • In 2015/16, in Lancashire-14, 1.7% maternities had an unknown smoking status compared with 3.1% at the national level. This should be borne in mind when interpreting the proportion of pregnant women known to be smoking at the time of delivery as the unknowns are effectively treated as non-smokers in the calculation
  • Across the eight Lancashire-14 CCGs the proportion of maternities with unknown smoking status ranges from 0% in NHS Chorley & South Ribble CCG, NHS East Lancashire CCG, NHS Fylde & Wyre CCG and NHS Greater Preston CCG, to 7.6% (17.2% in 2015/16) in NHS West Lancashire CCG. Changes to IT systems at a variety of providers, means that a large number of maternities have an unknown smoking status for NHS West Lancashire.

[i] North West and Lancashire-12 average calculated in-house by public health intelligence, Business Intelligence, Lancashire County Council.

The original data has been sourced from the NHS Digital website: Statistics on Women's Smoking Status at Time of Delivery: England - Apr 2016 to Mar 2017

Further analysis and data

Smoking at the time of delivery - Lancashire-14 2016/17 (XLSX 8,959 KB)

Page updated July 2017

Related websites

Local Tobacco Control Profiles Public Health England data and intelligence around a number of tobacco-related indicators.

NHS Digital: SATOD data visualisation tool