title: Rebasing the annual mid-year population estimates for England and Wales.
abstract: The ONS produces mid-year population estimates annually, which are based on updating from the most recent census. Therefore, whenever results become available from a census, a new base is created for the population estimates. This has implications for historic series, which need to be revised to be consistent with both the past and the most recent census. This article describes the methodology that will be used for this rebasing of the mid-year population estimates following the availability of results from the 2001 Census. Census results also provide a unique opportunity to assess the accuracy of the population estimates that are based on the previous census and this article also describes the approach that will be taken to the assessment of accuracy.
authors.forename: Craig
authors.initials: C
authors.lastname: Duncan
authors.forename: Roma
authors.initials: R
authors.lastname: Chappell
authors.forename: Jonathan
authors.initials: J
authors.lastname: Smith
authors.forename: Liz
authors.initials: L
authors.lastname: Clark
authors.forename: Francesca
authors.initials: F
authors.lastname: Ambrose
mesh_terms: D019352:Censuses; D003625:Data Collection / Q000379:methods; D003627:Data Interpretation, Statistical; D004739:England; D006801:Humans; D011156:Population Density; D012107:Research Design; D014852:Wales