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Metadata
- High level information
- Summary information
- Keywords
- Weblinks
- Statistical quality information
- Open Data
Title
BMI at initial assessment, by ethnic groupLast update
July 2024Next update
July 2025 (provisional)Publishing organisation
Welsh GovernmentSource 1
Maternity Indicators data setContact email
stats.healthinfo@gov.walesLowest level of geographical disaggregation
Local health boardsGeographical coverage
Local health boardsLanguages covered
English and WelshData 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-licenceGeneral description
More than 90% of records had valid data for both height and weight data items, across all health boards, in most years. The exceptions are: Cwm Taf in 2016 (77%) and in 2019 (88%); and Betsi Cadwaladr in 2019 (89%).Data for BMI is calculated based on heights and weights of the mother; however, records where the weight was below 30kg or above 250kg and/or where height was under 120cm or above 200cm have been excluded from the analysis, as measurements outside of these thresholds are unlikely to be reliable. Also, this analysis only includes mothers whose initial assessment was completed at 14 completed weeks of pregnancy or earlier. This filter is applied as weight measurements for mothers who have initial assessments in the later stages of pregnancy will be affected by the growth of the baby.
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
AnnualData reference periods
2016-2023Keywords
maternity; initial assessment; BMI; Body mass Index; ethnic groupWeblinks
https://gov.wales/maternity-and-birth-statisticshttps://cwmtaf.wales/welsh-government-announce-decision-on-bridgend-boundary-change/
https://gov.wales/written-statement-health-board-boundary-bridgend-associated-planning