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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 | Vital Statistics Outputs Branch |
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1.5. Contact mail address | Vital Statistics Outputs Branch Office for National Statistics Segensworth Road Titchfield Fareham Hampshire England PO15 5RR |
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2.1. Metadata last certified | 28/06/2019 | ||
2.2. Metadata last posted | 28/06/2019 | ||
2.3. Metadata last update | 28/06/2018 |
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3.1. Data description | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
First results on the main demographic developments in the year of reference. |
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3.2. Classification system | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Not applicable. |
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3.3. Coverage - sector | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Not applicable. |
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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 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Data are available at national level of geographical detail. |
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3.8. Coverage - Time | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
MSU - Long-Term International Migration (LTIM) data are available from 1991-2015 on ONS website. LTIM data are supplied to Eurostat for 2008 onwards. PEU - population estimates are available from 1838; a consistent series has been supplied to Eurostat from 2012 onwards VSOB - A time series for the number of births and deaths is available back to 1887. Population estimates are available from mid1971 to mid-2016 on the ONS website. |
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3.9. Base period | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Not applicable. |
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Counts of statistical units |
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The reference date for population data is the end of the reference period (midnight of 31December). |
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6.1. Institutional Mandate - legal acts and other agreements | |||
MSU - REGULATION (EC) No 862/2007 VSOB and PEU - Statistics and Registration Service Act 2007 |
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6.2. Institutional Mandate - data sharing | |||
MSU - Not applicable VSOB - Not available Population estimates - Not available |
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7.1. Confidentiality - policy | |||
MSU and population estimates - Not applicable Disclosure control guidance for birth and death statistics for England and Wales can be found at: www.ons.gov.uk/ons/guide-method/best-practice/disclosure-control-policy-for-birth-and-death-statistics/index.html |
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7.2. Confidentiality - data treatment | |||
MSU - None VSOB - Not available Population estimates - Not available |
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8.1. Release calendar | |||
MSU - Final estimates of long-term international migration (LTIM) are published annually in November of the following year. These are supplied to Eurostat to Eurostat in December. For example in December 2013, data for 2012 was supplied. First release of births and deaths are published in March for Scotland, mid-July for England and Wales and July/August for Northern Ireland, Population estimates for the UK for the year to 30 June are released at the end of the following June. |
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8.2. Release calendar access | |||
8.3. Release policy - user access | |||
MSU - Data are published on ONS website. The release of the data are advertised on online user fora e.g. Migration Statistics group on JISCMail, StatsUserNet. Each release contains details of future release dates. |
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MSU - Quarterly (provisional estimates), Annual (final estimates) |
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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 is normally released in June. In Northern Ireland a news release for final birth and death figures is normally released in July/August. There are no news releases for population estimates or migration statistics. |
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10.2. Dissemination format - Publications | ||||||||||||||||||
The first release of births and deaths data (final figures) for England and Wales takes place in mid-July. The first release of births and deaths data (final figures) for Scotland will takes place in June from 2018. The first release of births and deaths data (final figures) for Northern Ireland takes place in July/August. The UK Population Estimates for mid-year are published with a 12 month lag (thus, estimates for 2015, for example, are published in June 2016). The first release of provisional annual migration statistics (year ending December) data is in May. |
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10.3. Dissemination format - online database | ||||||||||||||||||
An online database of population estimates from mid-1981 to mid-2016 is available at: https://www.nomisweb.co.uk/query/select/getdatasetbytheme.asp?theme=32 An on-line database for deaths data in England and Wales is available (2013-2016): https://www.nomisweb.co.uk/query/select/getdatasetbytheme.asp?theme=73 An on-line database for births data in England and Wales is available (2013-2016): https://www.nomisweb.co.uk/query/select/getdatasetbytheme.asp?theme=73 An on-line database for UK population estimates from 1981 is available: https://www.nomisweb.co.uk/query/select/getdatasetbytheme.asp?theme=32 An on-line database not currently available for births, deaths or 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 available |
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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: https://www.ons.gov.uk/peoplepopulationandcommunity/populationandmigration/populationestimates/qmis/annualmidyearpopulationestimatesqmi Quality and Methodology document for births in England and Wales published at: http://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/livebirths/qmis/birthsqmi Quality assessment for births in Scotland published at: http://www.nrscotland.gov.uk/files//statistics/vital-events/quality-data-obtained-from-registration-of-ve.pdf Quality assessment for births in Northern Ireland published at: https://www.nisra.gov.uk/sites/nisra.gov.uk/files/publications/Northern_Ireland_Birth_Statistics_Quality_Assessment_0.pdf Quality and Methodology document for deaths England and Wales published at: http://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/deaths/qmis/mortalitystatisticsinenglandandwalesqmi Quality and Methodology document for deaths Northern Ireland published at: https://www.nisra.gov.uk/sites/nisra.gov.uk/files/publications/Northern_Ireland_Death_Statistics_Quality_Assessment_0.pdf Quality assessment for Deaths in Scotland published at: http://www.nrscotland.gov.uk/statistics-and-data/statistics/statistics-by-theme/vital-events/deaths/deaths-background-information/quality-of-nrs-data-on-deaths Quality and Methodology document for Abortions in England and Wales published at: https://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/conceptionandfertilityrates/methodologies/userguidetoconceptionstatistics Quality and Methodology document for Abortions in Northern Ireland published at: https://www.health-ni.gov.uk/articles/termination-pregnancy Quality and Methodology document for Abortions in Scotland published at: https://www.statisticsauthority.gov.uk/archive/assessment/assessment/assessment-reports/assessment-report-121---statistics-on-sexual-health-in-scotland.pdf Quality and Methodology document for Marriages in England and Wales published at: https://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/marriagecohabitationandcivilpartnerships/methodologies/marriagesinenglandandwalesqmi Quality and Methodology document for Marriages in Northern Ireland published at: https://www.nisra.gov.uk/publications/vital-statistics-quality-assurance-procedures Quality and Methodology document for Marriages in Scotland published at: https://www.nrscotland.gov.uk/statistics-and-data/statistics/statistics-by-theme/vital-events/general-background-information/quality-of-national-records-of-scotland-nrs-data-on-vital-events Quality and Methodology document for Divorces in England and Wales published at: https://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/divorce/methodologies/divorcesinenglandandwalesqmi Quality and Methodology document for Divorces in Northern Ireland published at: https://www.nisra.gov.uk/publications/vital-statistics-quality-assurance-procedures Quality and Methodology document for Divorces in Scotland published at: https://www.nrscotland.gov.uk/statistics-and-data/statistics/statistics-by-theme/vital-events/general-background-information/quality-of-national-records-of-scotland-nrs-data-on-vital-events Quality and Methodology document for international migration: https://www.ons.gov.uk/peoplepopulationandcommunity/populationandmigration/populationestimates/methodologies/longterminternationalmigrationqmi |
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11.1. Quality assurance | |||
Quality and Methodology Information report for population estimates published at: https://www.ons.gov.uk/peoplepopulationandcommunity/populationandmigration/populationestimates/qmis/annualmidyearpopulationestimatesqmi Quality and Methodology Information report for births in England and Wales published at: http://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/livebirths/qmis/birthsqmi Quality assessment for births in Northern Ireland published at: https://www.nisra.gov.uk/sites/nisra.gov.uk/files/publications/Northern_Ireland_Birth_Statistics_Quality_Assessment_0.pdf Quality and Methodology Information report for deaths in England and Wales published at: http://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/deaths/qmis/mortalitystatisticsinenglandandwalesqmi Quality assessment for deaths in Northern Ireland published at: https://www.nisra.gov.uk/sites/nisra.gov.uk/files/publications/Northern_Ireland_Death_Statistics_Quality_Assessment_0.pdf Quality documentation for births, deaths,marriages and divorces in Scotland published at: http://www.nrscotland.gov.uk/statistics-and-data/statistics/statistics-by-theme/vital-events/general-background-information/quality-of-national-records-of-scotland-nrs-data-on-vital-events Quality and Methodology document for international migration: https://www.ons.gov.uk/peoplepopulationandcommunity/populationandmigration/populationestimates/methodologies/longterminternationalmigrationqmi |
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11.2. Quality management - assessment | |||
Quality and Methodology Information report for population estimates published at: https://www.ons.gov.uk/peoplepopulationandcommunity/populationandmigration/populationestimates/qmis/annualmidyearpopulationestimatesqmi Quality and Methodology Information report for births in England and Wales published at: http://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/livebirths/qmis/birthsqmi Quality assessment for births in Northern Ireland published at: https://www.nisra.gov.uk/sites/nisra.gov.uk/files/publications/Northern_Ireland_Birth_Statistics_Quality_Assessment_0.pdf Quality and Methodology Information report for deaths in England and Wales published at: http://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/deaths/qmis/mortalitystatisticsinenglandandwalesqmi Quality assessment for deaths in Northern Ireland published at: https://www.nisra.gov.uk/publications/vital-statistics-quality-assurance-procedures Quality documentation for births and deaths in Scotland published at: http://www.nrscotland.gov.uk/statistics-and-data/statistics/statistics-by-theme/vital-events/general-background-information/quality-of-national-records-of-scotland-nrs-data-on-vital-events Quality and Methodology Information report for long-term international migration estimates published at: https://www.ons.gov.uk/peoplepopulationandcommunity/populationandmigration/populationestimates/qmis/longtermmigrationindicatorssuiteqmi |
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12.1. Relevance - User Needs | |||
Not available. |
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12.2. Relevance - User Satisfaction | |||
ONS carries out customer satisfaction surveys on an annual basis. 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 | |||
Quality and Methodology Information report for population estimates published at: https://www.ons.gov.uk/peoplepopulationandcommunity/populationandmigration/populationestimates/qmis/annualmidyearpopulationestimatesqmi Quality and Methodology Information report for births in England and Wales published at: http://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/livebirths/qmis/birthsqmi Quality assessment for births in Northern Ireland published at: https://www.nisra.gov.uk/sites/nisra.gov.uk/files/publications/Northern_Ireland_Birth_Statistics_Quality_Assessment_0.pdf Quality and Methodology Information report for deaths in England and Wales published at: http://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/deaths/qmis/mortalitystatisticsinenglandandwalesqmi Quality assessment for deaths in Northern Ireland published at: https://www.nisra.gov.uk/publications/vital-statistics-quality-assurance-procedures Quality documentation for births and deaths in Scotland published at: http://www.nrscotland.gov.uk/statistics-and-data/statistics/statistics-by-theme/vital-events/general-background-information/quality-of-national-records-of-scotland-nrs-data-on-vital-events Quality and Methodology Information report for long-term international migration estimates published at: https://www.ons.gov.uk/peoplepopulationandcommunity/populationandmigration/populationestimates/qmis/longtermmigrationindicatorssuiteqmi |
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13.1. Accuracy - overall | ||||||||||||||||||
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13.2. Sampling error | ||||||||||||||||||
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13.3. Non-sampling error | ||||||||||||||||||
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14.1. Timeliness | |||
MSU - Provisional LTIM estimates are published 5 months after the reference period. Final LTIM are published 11 months after the reference data. Eurostat estimates are provided 12 months after the reference date. Births and deaths are published 6-9 months after the reference period Population estimates are published just less than one year after the 30th June reference period |
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14.2. Punctuality | |||
As requested by Eurostat's annual data collections. |
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15.1. Comparability - geographical | |||||||||||||||
For population estimates, although there are small differences in methods between the constituent countries of the UK, the estimates are stated to be comparable for areas within the UK. A report on the consistency of methods used for population statistics across UK countries is available: https://www.ons.gov.uk/peoplepopulationandcommunity/populationandmigration/populationestimates/methodologies/consistencyofmethodsusedforpopulationstatisticsacrossukcountries Birth statistics for England and Wales are based on the number of births occurring in the year, while Scotland and Northern Ireland statistics relate to the number of births registered in the year. In England and Wales where a birth is registered too late to be included in the count for the year of occurrence, it will be included in the count for the following year. The differences between reporting occurrences and registrations are relatively minor and figures are broadly comparable. Death statistics are based on the number of deaths registered in the year across the UK so are comparable. For migration, estimates are comparable across the UK countries. |
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15.2. Comparability - over time | |||||||||||||||
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15.3. Coherence - cross domain | |||||||||||||||
Not available. |
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15.4. Coherence - internal | |||||||||||||||
The current population estimates will be different from that calculated by applying the official births, deaths and migration figures to the previous year's estimates for the following reasons: |
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Not available |
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17.1. Data revision - policy | |||
The Revision Policy is published at: www.ons.gov.uk/methodology/methodologytopicsandstatisticalconcepts/revisions/revisionspoliciesforpopulationstatistics The revision policy for vital events in Northern Ireland is published at:https://www.nisra.gov.uk/publications/vital-statistics-documentation The revision policy for Scotland (NRS) is published at:http://www.nrscotland.gov.uk/statistics-and-data/statistics/about-our-statistics/revisions-and-corrections |
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17.2. Data revision - practice | |||
In 2012/13 the UK population estimates for 2002-2010 were rebased to the results of the 2011 Census. In March 2018 further improvements to methods and updated datasets were used to revise the population estimates for mid-2012 to mid-2016: https://www.ons.gov.uk/peoplepopulationandcommunity/populationandmigration/populationestimates/bulletins/annualmidyearpopulationestimates/mid2012tomid2016 Rebased population estimates are used to revise mortality and fertility rates. |
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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 is provided on a daily basis to ONS. Births and deaths data from Scotland and Northern Ireland is provided on annual basis to ONS. IPS data is collected on an ongoing basis and supplied for producing migration estimates on a quarterly basis. Asylum seeker data and Health card data supplied on a quarterly basis. |
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18.3. Data collection | |||||||||||||||
Data collection is not carried out directly. Estimates of components of population change are received from other teams within ONS. Births and deaths data is provided by register offices. Migration data is received from other teams within ONS, NISRA and the Home Office. |
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18.4. Data validation | |||||||||||||||
Estimates of components of population change are received from other teams within ONS. Basic checks of allowable values and comparison with previous years are applied. Descriptions of how each administrative data source is quality assured can be found in the quality assurance of administrative data listed in the 'relevance' section here: https://www.ons.gov.uk/peoplepopulationandcommunity/populationandmigration/populationestimates/qmis/annualmidyearpopulationestimatesqmi Births and deaths data is provided by register offices. Checks of completeness, allowable values, comparison with previous years and imputation is carried out where necessary. Migration data is received from other teams within ONS, NISRA and the Home Office. Checks of completeness and allowable values are carried out and imputation applied where necessary. |
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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. Births and deaths data are coded, edited or imputed where necessary. Child deaths are linked with birth registrations using NHS number in England and Wales. For migration data, annual record editing is carried out where necessary. Some imputation of variables from best match donor within input stream in the quarter. Data processing and estimation occur within an internally developed computer system. Output reports are checked and include charts and logic to check balances produced. Totals in output spreadsheets are checked. |
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18.6. Adjustment | |||||||||||||||
No statistical adjustment is carried out to adjust population definitions to standard definitions. However, the method of calculating 1 January populations from the mid-year populations calculated as standard means that components of change (migration and natural change), which are supplied on a true calendar year basis, do not correspond precisely with the change in population estimates. |
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Not available |
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