Smoking Status at Time of Delivery (SATOD) data collection

Sub Integrated Care Boards (ICBs) are required to submit data on smoking status at time of delivery every 3 months through the NHS England Strategic Data Collection.

Q4 2024/25 will be the last submission of data for this collection. There are no submission dates from 2025/26 as the Smoking at the Time of Delivery data collection has now ceased following a Health and Social Care Statistics consultation carried out in 2024. During 2024/2025, SATOD data has been dual collected and reported using data from the Maternity Services Dataset (MSDS) with the final report for Q4 2024/25 to be published in June 2025. As the national estimates from both data sources are closely aligned, MSDS will replace the SATOD data collection for future SATOD reporting. MSDS data is submitted monthly by NHS trusts so sub-ICBs (or other commissioning entities) are no longer required to submit data for this collection. 

Sub (ICBs) are required to submit data on smoking status at time of delivery every three months through the NHS Digital Strategic Data Collection System (SDCS).

Submission timetable

The submission deadlines for each quarter are:

Sub ICBs must submit the following data items for each quarter in the financial year of the birth registration:

• number of maternities
• number of women known to be smokers at the time of delivery
• number of women known to be non-smokers at the time of delivery 
• number of women whose smoking status was not known at the time of delivery

These are defined as:

• the number of maternities - the number of pregnant women who give birth (during the quarter) 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) - this means that twins are counted as one maternity and it does not include maternities that occur in psychiatric hospitals or private beds /hospitals
• women known to be smokers at the time of delivery - pregnant women who self-reported that they were smokers - this includes any cigarettes or tobacco at all, but excludes non-combustible nicotine products, such as e-cigarettes or other nicotine containing products - If a woman intends to give up smoking after the delivery, but was a smoker up until the delivery date they are included in this count
• women known to be non-smokers at the time of delivery - pregnant women who self-reported that they were non-smokers (no cigarettes or tobacco at all) - this count does not include women whose smoking status is not known (which is collected separately), or those who intend to give up smoking after delivery
• women whose smoking status was not known at the time of delivery - those whose smoking status was not determined for whatever reason. 

This is a sub ICB return, sub ICBs should submit all maternities where the baby is delivered by either a midwife or doctor at home or in an NHS hospital (including GP units) commissioned by that sub ICB. The sub ICB is required to submit data for all maternities.

During the quarter 4 submission period, there will be an opportunity to re-submit data for quarters 1, 2 and 3. If you want to make revisions, please contact the data collections team first so they can re-open the quarter(s) for revision.