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For any question on data and metadata, please contact: Eurostat user support |
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1.1. Contact organisation | Office for National Statistics |
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1.2. Contact organisation unit | HALE Methods and International Branch |
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1.5. Contact mail address | HALE Methods and International Branch Office for National Statistics Cardiff Road Newport NP10 1XG UNITED KINGDOM |
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2.1. Metadata last certified | 30/01/2020 | ||
2.2. Metadata last posted | 30/01/2020 | ||
2.3. Metadata last update | 30/01/2020 |
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3.1. Data description | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Data and metadata are transmitted to Eurostat by the Member States in the framework of the Unified Demographic Data Collection which is in accordance with Regulation (EC) No 862/2007 and Regulation (EU) No 1260/2013 and their implementing regulations. This Euro SDMX Metadata Structure is used for the purpose of quality reporting. The definition of the quality concepts and guidelines are described in the European Statistical System Handbook for Quality Reports. |
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3.2. Classification system | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
The current regional breakdown of the countries in the regional demographic tables is according to: 1. Regulation (EU) 2016/2066 amending the annexes to Regulation (EC) No 1059/2003 of the European Parliament and of the Council on the establishment of a common classification of territorial units for statistics (NUTS). The NUTS classification according to this regulation is shortly named NUTS-2016. 2. Agreements between Eurostat and Candidate countries as well as between Eurostat and EFTA countries, for which statistical regions have been coded in a way that resembles NUTS. |
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3.3. Coverage - sector | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A time series for population estimates is available back to the following dates: Total UK: 1851; Quinary age and sex: 1953; Single year of age and sex: 1971; A time series for the number of births and deaths is available back to 1887; A time series for migration data is available back to 1975. |
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3.4. Statistical concepts and definitions | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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3.5. Statistical unit | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Number of persons. |
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3.6. Statistical population | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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3.7. Reference area | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Population, live births and deaths data are available at national and regional level of geographical detail. |
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3.8. Coverage - Time | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Population estimates data with the reference 31 December/1 January is available from 2001. Alternative series for population estimates based on the mid-year reference point is available back to the following dates: Total UK: 1851; Quinary age and sex: 1953; Single year of age and sex: 1971; A time series for the number of births and deaths is available back to 1887; A time series for migration data is available back to 1975. |
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3.9. Base period | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Not applicable. |
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Data is collected at unit (person) level. |
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The reference date for population data is the end of the reference period (midnight of 31 December). |
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6.1. Institutional Mandate - legal acts and other agreements | |||
Regulation (EC) No 862/2007. |
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6.2. Institutional Mandate - data sharing | |||
Regulation (EC) No 862/2007. |
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7.1. Confidentiality - policy | |||
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7.2. Confidentiality - data treatment | |||
To protect confidentiality in Table B02, data for mothers aged 14 and aged under 14 has been combined with data for mothers aged 15 born in 1998. Similarly, in Table B03, data for mothers aged under 15 has been combined with data for mothers aged 15-19.
For population estimates small estimates should not be taken to refer to individuals to protect confidentiality in Table B02, data for mothers aged 14 and under has been combined with data for mothers aged 15 born in 1998. Similarly in Table B03, data for mothers aged under 15 has been combined with data for mothers aged 15-19. For population estimates small estimates should not be taken to refer to particular individuals. |
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8.1. Release calendar | |||
Population estimates to the mid-year reference point of the preceding year are published at the end of June. First release of births and deaths are published in June for Scotland, mid-July for England and Wales and July/August for Northern Ireland. Migration statistics are published quarterly in February, May, August and November. |
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8.2. Release calendar access | |||
8.3. Release policy - user access | |||
Data are released in line with the Code of Practice for Official Statistics: www.statisticsauthority.gov.uk/assessment/code-of-practice/. |
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Annual. |
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10.1. Dissemination format - News release | ||||||||||||||||||||||||||||
In recent years there has been no news release for births and deaths data in England and Wales. In Scotland a news release for birth and death figures was released in June 2018: https://www.nrscotland.gov.uk/news/2018/5000-more-deaths-than-births-in-2017. In Northern Ireland a news release for final birth and death figureswas released in November 2019: https://www.nisra.gov.uk/statistics/births-deaths-and-marriages/registrar-general-annual-report. There are no news releases for population estimates or migration statistics. Annexes: NI Registrar report |
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10.2. Dissemination format - Publications | ||||||||||||||||||||||||||||
Annexes: births summary 2018 |
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10.3. Dissemination format - online database | ||||||||||||||||||||||||||||
An online database of population estimates from 1981 to 2018 is available at: https://www.nomisweb.co.uk/query/select/getdatasetbytheme.asp?theme=32.
An on-line database for births and deaths data in England and Wales is available (2013-2018).
Births data is available in mid-July and deaths data in October.
An on-line database is not currently available for migration in the UK. Detailed data is provided by Excel files. |
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10.4. Dissemination format - microdata access | ||||||||||||||||||||||||||||
Not applicable. |
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10.5. Dissemination format - other | ||||||||||||||||||||||||||||
Not applicable. |
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10.6. Documentation on methodology | ||||||||||||||||||||||||||||
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10.7. Quality management - documentation | ||||||||||||||||||||||||||||
Quality and Methodology document for population estimates published at:
Quality and Methodology document for births in England and Wales published at:
Quality assessment for births in Scotland published at:
Quality assessment for births in Northern Ireland published at:
Quality and Methodology document for deaths England and Wales published at:
Quality and Methodology document for deaths Northern Ireland published at:
Quality assessment for Deaths in Scotland published at:
Quality and Methodology document for Abortions; in England and Wales published at:
Quality and Methodology document for Abortions; in Northern Ireland published at:
Quality and Methodology document for Abortions; in Scotland published at:
Quality and Methodology document for Marriages; in England and Wales published at:
Quality and Methodology document for Marriages; in Northern Ireland published at:
Quality and Methodology document for Marriages; in Scotland published at:
Quality and Methodology document for Divorces; in England and Wales published at:
Quality and Methodology document for Divorces; in Northern Ireland published at:
Quality and Methodology document for Divorces; in Scotland published at:
Quality and Methodology document for international migration:
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11.1. Quality assurance | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
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11.2. Quality management - assessment | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
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12.1. Relevance - User Needs | |||
Users are a mixture of bodies from central government, local government, health service, academics, researchers, charities and the general public. Different users require varying levels of detail in terms of figures and commentary. The population estimates are an important input for a wide number of economic and social statistics. Main users include central and local government and the health sector, where they are used for planning and monitoring service delivery, resource allocation and managing the economy. Additionally, they are used by a wider range of organisations such as commercial companies (for market research), special interest groups and academia as well as being of interest to the general public. |
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12.2. Relevance - User Satisfaction | |||
Feedback is requested from users from each release of data and on emails to customers. In addition, ONS holds regular “key account” meetings with key user organisations to ensure that the quality and relevance of outputs is maintained. |
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12.3. Completeness | |||
The statistics that are most needed are available.
Ad-hoc requests for data that are not routinely published are made available on the ONS website: https://www.ons.gov.uk/aboutus/whatwedo/statistics/requestingstatistics/alladhocs. |
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13.1. Accuracy - overall | ||||||||||||||||||||||||||||
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13.2. Sampling error | ||||||||||||||||||||||||||||
Annexes: 13.1 Accuracy - asylum seekers and refugees |
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13.3. Non-sampling error | ||||||||||||||||||||||||||||
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14.1. Timeliness | |||
According to Art 4 (2) of the Commission Implementing Regulation (EU) No 205/2014, each year Member States shall provide the Commission (Eurostat) with data at national and regional level as described in Annex II and related standard reference metadata ( In the metadata structure definition defined for the Euro SDMX Metadata Structure) for the reference year within 12 months of the end of the reference year. According to Art 3 (2) of the Commission Regulation (EC) No 862/2007, Statistics on international migration, usually resident population and acquisition of citizenship shall be supplied to the Commission (Eurostat) within 12 months of the end of the reference year. |
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14.2. Punctuality | |||
Estimates are delivered on time. |
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15.1. Comparability - geographical | ||||||||||||||||||||||||||||
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15.2. Comparability - over time | ||||||||||||||||||||||||||||
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15.3. Coherence - cross domain | ||||||||||||||||||||||||||||
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15.4. Coherence - internal | ||||||||||||||||||||||||||||
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Not applicable. |
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17.1. Data revision - policy | |||
The revision policy is published at The revision policy for vital events in Northern Ireland is published at: The revision policy for NRS is published at |
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17.2. Data revision - practice | |||
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18.1. Source data | ||||||||||||||||||||||||||||
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18.2. Frequency of data collection | ||||||||||||||||||||||||||||
Population estimates data are collected annually. Data from birth and death registrations for England and Wales are provided on a daily basis to ONS. Births and deaths data from Scotland and Northern Ireland are provided on annual basis to ONS. IPS data are collected on an ongoing basis and supplied for producing migration estimates on a quarterly basis. Asylum seeker approvals and Health card data are supplied on a quarterly basis. |
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18.3. Data collection | ||||||||||||||||||||||||||||
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18.4. Data validation | ||||||||||||||||||||||||||||
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18.5. Data compilation | ||||||||||||||||||||||||||||
Population Estimates are compiled by applying components of change to start-year population. Estimation of sex and age of migration data is made at local level. Estimation of place of usual residence is made at local level for armed forces based on 2011 Census results. |
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18.6. Adjustment | ||||||||||||||||||||||||||||
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Not available. |
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