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Publication, Part of

Statistics on Women's Smoking Status at Time of Delivery, England - Quarter 3, 2015-16

Official statistics
Publication Date:
Geographic Coverage:
Geographical Granularity:
Regions, Clinical Commissioning Groups
Date Range:
01 Oct 2015 to 31 Dec 2015


The Data Quality Tables 3 and 4 were replaced on 03/05/2016 as the data in the rows between NHS Gloucestershire and NHS Newcastle Gateshead was incorrect.  The DQ Statement was also corrected where CCGs with poor data quality were listed.   The HSCIC apologise for any inconvenience caused by this error.

This report presents the latest results and trends from the women's smoking status at time of delivery (SATOD) data collection in England. It includes new figures for the third quarter of 2015-16.

The results provide a measure of the prevalence of smoking among pregnant women at Commissioning Region, Region and Clinical Commissioning Group level.

Smoking during pregnancy can cause serious pregnancy-related health problems. These include complications during labour and an increased risk of miscarriage, premature birth, low birth-weight and sudden unexpected death in infancy.

Reports in the series prior to 2011-12 quarter 3 are available from the Department of Health website (see below).


Key Facts

In England, Quarter 3, 2015/16 

  • 10.6 per cent of pregnant women were known to be smokers at the time of delivery, this compares to 10.5 per cent for the most recent quarter (quarter 2, 2015/16) although this is not a statistically significant difference.It has however fallen from 11.4 per cent compared to the same quarter last year (quarter 3, 2014/15).

  • The proportion of pregnant women known to be smokers at the time of delivery is now below the national ambition of 11 per cent.

  • However, there are some geographical differences amongst all NHS England Regions, (Footnote a) smoking prevalence at delivery varied from 16.1 per cent in Cumbria and North East to 4.8 per cent in London.

  • Amongst the 209 Clinical Commissioning Groups, smoking prevalence at delivery ranged from 25.0 per cent in NHS Blackpool to 1.3 per cent in NHS Central London (Westminster).

  • 2.6 per cent of maternities (Footnote b) had an unknown smoking status in quarter 3 2015/16. This compares to 3.2 per cent for the most recent quarter (quarter 2, 2015/16) and 3.0 per cent for the same quarter last year (quarter 3, 2014/15). 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. 

  • If the number of maternities with an unknown smoking status were removed from the denominator, the proportion of women smoking at the time of delivery would increase to 10.9 per cent.


Footnote a: From 1st April 2015 the structure of NHS England has changed and Area Teams have now been integrated into the existing regional structures to form a single regional tier. More information can be found here

Footnote b: The number of maternities is defined as the number of pregnant women who give birth to one or more live or stillborn babies of at least 24 weeks gestation, where the baby is delivered by either a midwife or doctor at home or in an NHS hospital (including GP units). This count should be the number of pregnant women, not the number of babies (deliveries). It does not include maternities that occur in psychiatric hospitals or private beds / hospitals.



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Last edited: 11 April 2018 5:24 pm