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Percentage of mothers known to be smokers at time of delivery (12035) Metric type

URI
http://id.esd.org.uk/metricType/12035
Help text
The number of mothers known to be smokers at the time of delivery as a percentage of all maternities. A maternity is defined as a pregnant woman who gives 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 a NHS hospital.

There has been a change of method for reporting this information from April 2017, removing those whose smoking status is unknown from the calculation. Excluding women with unknown smoking status from the calculation will provide a more accurate representation of the true proportion of women smoking at time of delivery. In the previous definition, women with unknown smoking status were effectively categorised as non-smokers. However, a number of these would be smokers and this therefore served to deflate the indicator value. The overall impact of this change at England level is small, although the impact will be greater for those Clinical Commissioning Groups (CCGs) who have a high proportion of unknowns. Work is already underway to encourage and support Trusts/CCGs to collect and record accurate information. IT issues are reported as the main reason for high levels of unknowns, which should be resolved as systems embed and improve.
Modified
04 Aug 2021
Data last updated
29 Apr 2024
Also known as
  • PHOF 2.03
  • 2.03
  • 2.03 - Smoking status at time of delivery
  • C06 - Smoking status at time of delivery_Female_All ages
  • C06
Short label
% of mothers known to be smokers at time of delivery
Status
Live
Output precision
1
Polarity
a low value is good
Measure
% of all maternities
Dataset
Calculated by PHE from the NHS Digital return on Smoking Status At Time of delivery (SATOD)
Collection
Public Health Outcomes Framework
Source
Office for Health Improvement and Disparities (OHID)
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