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Publication, Part of

Statistics on Women's Smoking Status at Time of Delivery: England, Quarter 2, 2024-25

Official statistics

Inclusion of new comparative data from the Maternity Services Dataset (MSDS)

For 2024-25, comparative data using the Maternity Services Dataset (MSDS) is also presented using data submitted by Trusts. This is to help support decisions around the retirement of the Smoking at Time of Delivery data collection at the end of 2024-25.

19 September 2024 00:00 AM

Page contents

Data quality

SATOD v1 - Maternities with an unknown smoking status

In quarter 2 of 2024-2025 the number of maternities with an unknown smoking status was 2.4%. This is a decrease from 3.2% in quarter 1.

The following 11 Sub-ICBs recorded 5% or more of their maternities with an unknown smoking status:

  • NHS Devon ICB - 15N (40.5%)
  • NHS Buckinghamshire, Oxfordshire and Berkshire West ICB - 10Q (17.4%)
  • NHS Cornwall and the Isles of Scilly ICB - 11N (13.6%)
  • NHS Lancashire and South Cumbria ICB - 00X (10.6%)
  • NHS Lancashire and South Cumbria ICB - 01E (10.4%)
  • NHS North East and North Cumbria ICB - 01H (9.7%)
  • NHS Nottingham and Nottinghamshire ICB - 02Q (8.4%)
  • NHS Coventry and Warwickshire ICB - B2M3M (7.8%)
  • NHS Bedfordshire, Luton and Milton Keynes ICB - M1J4Y (6.7%)
  • NHS Hertfordshire and West Essex ICB - 07H (6.2%)
  • NHS Greater Manchester ICB - 01D (5.6%)

SATOD v2 - Maternities with an unknown smoking status

In quarter 2 of 2024-2025, the number of maternities with an unknown smoking status was 7.3% which is a decrease from 8.4% in quarter 1.

While guidance is in place on how to submit smoking statuses in MSDS, this has not previously focused on the need to record only one consistent smoking status within +/- 3 days of the labour onset date. Some SATOD v2 maternities are recorded as having an unknown smoking status due to conflicting smoking status information being recorded within the +/- 3 days of the labour onset date, e.g. both smoker and non-smoker recorded.

Guidance on submitting smoking status data to MSDS has now been published, which sets out which clinical codes to submit for smoking status (as listed in Appendix A) and which MSDS tables to record this information in. As well as reducing the number of SATOD v2 maternities with conflicting smoking status information being recorded, this enhanced guidance should support further reductions in the number of maternities with an unknown smoking status by helping reduce the number of maternities where no smoking status at all is recorded.

This diagram sets out how smoker and non-smoker codes recorded within MSDS are used to allocate a SATOD v2 smoking status:

 

SATOD v2 - Trusts excluded from quarter outputs due to failing data quality checks, MSDS

In quarter 2 of 2024-2025, the following trusts failed data quality checks and therefore their data is not included in the months stated in the table below. Details of the data quality metrics can be found in the Maternity Services Monthly Publication metadata, in the 'CQIMDQ Measures Construction' tab. These are the same data quality metrics used for the CQIMSmokingDelivery measure. The relevant data quality metrics are CQIMDQ02, CQIMDQ06 and CQIMDQ07.

Provider name Months with excluded data from quarter outputs
BARNSLEY HOSPITAL NHS FOUNDATION TRUST Jul-24
DONCASTER AND BASSETLAW TEACHING HOSPITALS NHS FOUNDATION TRUST Sep-24
KING'S COLLEGE HOSPITAL NHS FOUNDATION TRUST Jul-24
LONDON NORTH WEST UNIVERSITY HEALTHCARE NHS TRUST July 2024, September 2024
ROYAL DEVON UNIVERSITY HEALTHCARE NHS FOUNDATION TRUST July 2024, August 2024, September 2024
THE HILLINGDON HOSPITALS NHS FOUNDATION TRUST Sep-24
UNIVERSITY HOSPITALS BRISTOL AND WESTON NHS FOUNDATION TRUST July 2024, August 2024, September 2024
UNIVERSITY HOSPITALS COVENTRY AND WARWICKSHIRE NHS TRUST July 2024, September 2024
UNIVERSITY HOSPITALS OF MORECAMBE BAY NHS FOUNDATION TRUST Aug-24
WHITTINGTON HEALTH NHS TRUST Jul-24

For more information: SATOD v2 DQ Table (Sub-ICB), Statistics on Women’s Smoking at Time of Delivery, England - Quarter 2, 2024-25



Last edited: 19 December 2024 9:31 am