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Implications of 2001 Census for local authority district mid-year population estimates
Abstract:
ONS published mid-2001 population estimates for England and Wales based on the 2001 Census in October 2002. Mid-2001 estimates were also produced, but not published, rolled forward from the 1991 Census. By considering the differences between these two estimates, ONS is able to assess how accurate estimates of population change have been between mid-1991 and mid-2001. Results of this comparison at national and regional levels have already been published on the National Statistics website. This article concentrates on the differences at local authority district level. Analyses of these differences within the article are in three parts-basic descriptive statistics, comparison of the local authority districts as a proportion of their national totals, and more complex multiple regression analysis. The implications of these results are then assessed and recommendations put forward to help improve the mid-year estimates in the following decade. Improvements will also come through other studies such as the National Statistics Quality Review on international migration.
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