Live births by single week of gestational age

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Standard shorthand is used in this table: [z] = not applicable.

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Gestational age completed weeks ( of 23 selected23 selectable options)

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Data valuesData descriptionYearAreaGestational age completed weeks
26,944Number2024WalesAll births
38Number2024WalesLess than 24 weeks
15Number2024Wales24
17Number2024Wales25
18Number2024Wales26
36Number2024Wales27
28Number2024Wales28
52Number2024Wales29
60Number2024Wales30
80Number2024Wales31
98Number2024Wales32
164Number2024Wales33
273Number2024Wales34
391Number2024Wales35
860Number2024Wales36
2,466Number2024Wales37
3,753Number2024Wales38
7,962Number2024Wales39
6,251Number2024Wales40
3,526Number2024Wales41
611Number2024Wales42
83Number2024WalesMore than 42 weeks
162Number2024WalesNot stated
27,457Number2023WalesAll births
37Number2023WalesLess than 24 weeks
13Number2023Wales24
20Number2023Wales25
23Number2023Wales26
31Number2023Wales27
42Number2023Wales28
56Number2023Wales29
60Number2023Wales30
83Number2023Wales31
113Number2023Wales32
135Number2023Wales33
293Number2023Wales34
406Number2023Wales35
837Number2023Wales36
2,526Number2023Wales37
3,954Number2023Wales38
7,757Number2023Wales39
6,555Number2023Wales40
3,537Number2023Wales41
670Number2023Wales42
161Number2023WalesMore than 42 weeks
148Number2023WalesNot stated
28,388Number2022WalesAll births
39Number2022WalesLess than 24 weeks
17Number2022Wales24
14Number2022Wales25
14Number2022Wales26
29Number2022Wales27
38Number2022Wales28
42Number2022Wales29
71Number2022Wales30
79Number2022Wales31
115Number2022Wales32
177Number2022Wales33
279Number2022Wales34
436Number2022Wales35
952Number2022Wales36
2,448Number2022Wales37
4,033Number2022Wales38
7,827Number2022Wales39
6,799Number2022Wales40
3,828Number2022Wales41
825Number2022Wales42
167Number2022WalesMore than 42 weeks
159Number2022WalesNot stated
28,879Number2021WalesAll births
36Number2021WalesLess than 24 weeks
17Number2021Wales24
14Number2021Wales25
33Number2021Wales26
23Number2021Wales27
38Number2021Wales28
50Number2021Wales29
57Number2021Wales30
76Number2021Wales31
117Number2021Wales32
154Number2021Wales33
280Number2021Wales34
456Number2021Wales35
927Number2021Wales36
2,274Number2021Wales37
3,824Number2021Wales38
7,820Number2021Wales39
7,107Number2021Wales40
4,340Number2021Wales41
872Number2021Wales42
160Number2021WalesMore than 42 weeks
204Number2021WalesNot stated
28,781Number2020WalesAll births
42Number2020WalesLess than 24 weeks
20Number2020Wales24
24Number2020Wales25
23Number2020Wales26
36Number2020Wales27
51Number2020Wales28
53Number2020Wales29
Showing 1 to 100 of 644 rows
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Next update expected:August 2026

Updates

19th December 2025
Dataset first published.

Main information

Designation
Accredited official statistics
Data provider
Digital Health and Care Wales (DHCW)
Data source
National Community Child Health Database (NCCHD)

Overview

Summary of dataset and variables

Number of live births broken down by single week of gestational age.

These statistics are derived from the National Community Child Health Database (NCCHD). This data source is provided to the Welsh Government by Digital Health and Care Wales (DHCW).

The NCCHD consists of anonymised records for all children born, resident or treated in Wales and born after 1987. The database brings together data from local Community Child Health System databases which are held by local health boards (LHBs), and its main function is to provide an online record of a child’s health and care from birth to leaving school age. The statistics used in this release are based on the data recorded at birth and shortly after birth.

Full details of every data item available on both the Maternity Indicators dataset and National Community Child Health Database are available through the NHS Wales Data Dictionary.

Data collection or calculation

The NCCHD includes records of all children born in, resident in or receiving services in their relevant local health boards. This means the database contains some information for some children not currently residing in Wales; however, unless otherwise stated, all statistics produced from data sourced from this database is filtered to only include those children born in Wales.

The NCCHD records both live and stillbirths, however this analysis refers only to live births.

Statistical quality

There are no specific statistical quality issues in relation to this data.

Related reports

Published by

Organisation
Welsh Government
Contact email
stats.healthinfo@gov.wales

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