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Released on: 30 September 2025
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Methodology
How the ONS uses detailed statistical methods and analytical tools to assess the impact of residual seasonality on published time series.
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Released on: 18 March 2020
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Methodology
Upcoming improvements to the International Passenger Survey methods to be introduced on 22 May 2020, with final 2019 results and a revised back series.
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Released on: 1 June 2021
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Methodology
The methodology used to calculate healthcare expenditure by financing scheme for the year t-1 on a basis consistent with the back series of the UK health accounts.
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Released on: 14 December 2016
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Methodology
This revisions article explains the revisions to the workforce jobs series released on 14 December 2016 in the Labour Market statistical bulletin.
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Released on: 2 September 2020
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Methodology
Methodology used to calculate estimates in the Analysis of death registrations not involving COVID-19 series, particularly the September edition (analysis to 10 July 2020).
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Released on: 17 December 2019
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Methodology
Developments and revisions to the workforce jobs (WFJ) series, released by Office for National Statistics (ONS) on 17 December 2019 in the Vacancies and jobs statistical bulletin.
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Released on: 18 May 2022
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Methodology
A historical series of our lead measure of inflation, the Consumer Prices Index including owner occupier's housing costs (CPIH), which extends the series back to 1950. Definitive historical division-level indices for both Consumer Prices Index (CPI) and CPIH from 1950 to 1988 are available. Data in this release are not a National Statistic and are provided for indicative purposes only.
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Released on: 27 August 2024
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Corporate Information
A webinar series where you can learn more about data and statistics. Everything from gathering your data and keeping it safe and secure to releasing figures that make a difference.
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Released on: 16 November 2016
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Methodology
As part of the ongoing development of the Claimant Count since the introduction of Universal Credit, the series now includes Claimants from the Department for Work and Pensions' Full Universal Credit Service. This results in upwards revisions to the Claimant Count.
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Released on: 27 February 2017
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Corporate Information
Please note that these research outputs are NOT official statistics on household numbers. Rather they are outputs from continued research into a different methodology of producing estimates on the number of households. It is important that the information and research published as part of the publication is read alongside the outputs to aid interpretation and avoid misunderstanding. This is part of a series of Administrative Data Census Research Outputs the first which was published in October 2015.
