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Welsh Government
Data Provider: Welsh Government Smoking at initial assessment and birth, by health board providing the service
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[Collapse]Smoking status at initial assessment[Collapse]Smoking status at birth
Click here to sortSmokingClick here to sortNot smokingClick here to sortNot statedClick here to sortTotal womenClick here to sortSmokingClick here to sortNot smokingClick here to sortNot statedClick here to sortTotal women
[Collapse]Wales14.185.92.1.The data item is not applicable11.888.219.4.The data item is not applicable
WalesBetsi Cadwaladr18.481.60.5.The data item is not applicable16.183.90.9.The data item is not applicable
Powys8.691.42.4.The data item is not applicable5.194.90.5.The data item is not applicable
Hywel DdaHywel Dda did not submit any data for smoking at birth in 2021.13.186.97.3.The data item is not applicable..|The data item is not available..|The data item is not available100.0.The data item is not applicable
Swansea BayIn 2021 and 2022, Swansea Bay health board submitted a very high number of records for ‘not smoking’ at birth, which is likely to be an error and affects the percentage for smoking at birth for the health board.12.987.13.3.The data item is not applicable0.0100.022.6.The data item is not applicable
Cwm Taf Morgannwg15.184.91.1.The data item is not applicable13.986.134.3.The data item is not applicable
Aneurin Bevan15.184.91.3.The data item is not applicable13.186.91.8.The data item is not applicable
Cardiff & Vale9.390.72.0.The data item is not applicable10.889.20.4.The data item is not applicable

Metadata

Title

Smoking at initial assessment and birth, by health board providing the service

Last update

July 2023 July 2023

Next update

June 2024 (provisional)

Publishing organisation

Welsh Government

Source 1

Maternity Indicators data set

Contact email

stats.healthinfo@gov.wales

Lowest level of geographical disaggregation

Local health boards

Geographical coverage

Local health boards

Languages covered

English and Welsh

Data licensing

You may use and re-use this data free of charge in any format or medium, under the terms of the Open Government License - see http://www.nationalarchives.gov.uk/doc/open-government-licence

General description

Smoking at initial assessment:
More than 90% of records had valid data for the smoking status at initial assessment data item, across all health boards, in all years. However, statistics on smoking at initial assessment and birth are limited by the way in which the data is collected. If CO monitoring is not available, data reliability is dependent on the mother self-reporting accurate information. CO monitoring has largely been suspended since the COVID-19 pandemic began, so data for 2020 and 2021 is mainly self-reported.
E-Cigarette use should not be recorded in this data item and would not be detected by a CO monitor; however, in practice some mothers may self-report as a smoker if they use e-cigarettes and be incorrectly recorded as a smoker. Likewise, some mothers who do smoke may self-report as a non-smoker and be incorrectly recorded as a non-smoker.

Smoking at birth:
In 2021, 82% of records had valid data recorded at the Wales level. This was largely due to Hywel Dda health board not supplying any smoking at birth data, while there was only 68% complete data for Cwm Taf Morgannwg. There were also low levels of completeness in 2020 for Hywel Dda (30%), Cwm Taf Morgannwg (70%) and Powys (76%). However, in all years prior to 2020, more than 90% of records had valid data for smoking status at birth, across nearly all health boards.

Full details of every data item available on both the Maternity Indicators dataset and National Community Child Health Database are available through the NWIS Data Dictionary: http://www.datadictionary.wales.nhs.uk/#!WordDocuments/datasetstructure20.htm

From 1st April 2019 health service provision for residents of Bridgend local authority moved from Abertawe Bro Morgannwg to Cwm Taf. For more information see the joint statement from Cwm Taf and Abertawe Bro Morgannwg University Health Boards (see weblinks). The health board names have changed with Cwm Taf University Health Board becoming Cwm Taf Morgannwg University Health Board and Abertawe Bro Morgannwg University Health Board becoming Swansea Bay University Health Board.
Data for Abertawe Bro Morgannwg and Cwm Taf are available for previous years in this table by selecting the tick boxes in the Area drop-down box.

Frequency of publication

Annual

Data reference periods

2016-2022

Keywords

maternity; mothers smoking; smoking at birth

Statistical quality

More detailed information on the sources of data and analyses in this statistical release are provided in the quality report: https://gov.wales/maternity-and-birth-statistics-quality-report