Hi Shobana
> Our research work is about to analyze certain type of
> diseased patients in different districts for both the sex
> seperately. For that we usually calculate rates like Crude
> rate, Age Adjusted Rate, etc., To calculate such rates I
> require population. I have five year age wise population of
> Census 1981,1991 and 2001 for each district and sex. I have
> to estimate population for intercensal period, mid 2001,
> post censal years.I wanted to know what are the different
> ways for estimating population from census data? If I use
> such methods the estimated population will have the real
> trend as census population. And suggest me some related
> web-sites to know more about different estimation methods.My
> sincere thanks to allstats.
This is not a simple request to answer as there are several ways (and
combinations of ways) of estimating intercensal and postcensal
populations. Moreover, assuming you are referring to UK, there have
been changes in the number of and areal extents of local government
districts during the 1981 to 2001 period.
The Office for National Statistics have mid-year estimates for England and Wales
local authorities. Investigate this via:
http://www.statistics.gov.uk/about/data/methodology/specific/populatio
n/
Below my signature to this email are references to some work which will help you
understand a little more about population estimation and the use of these as
populations at risk in health measures.
If you or your colleagues want you learn more about demographic methods and
population estimating and forecasting, please may I take the liberty of referring you to
a series of courses we run at CCSR:
* Introduction to demographic concepts and methods
* Introduction to population estimating and forecasting
* Demographic forecasting with POPGROUP
http://www.ccsr.ac.uk/courses/external/2004-2005/
All the best
Paul
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Dr Paul Norman
Cathie Marsh Centre for Census & Survey Research
University of Manchester
http://www.ccsr.ac.uk/staff/pn.html
[log in to unmask]
01756 797672 (h)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Rees P, Brown D, Norman P and Dorling D (2003) Are socioeconomic inequalities in
mortality decreasing or increasing within some British regions? An observational
study, 1990-98. Journal of Public Health Medicine. 25(3): 208-214
Rees P, Norman P and Brown D (2004) A framework for progressively improving
small area population estimates. Journal of the Royal Statistical Society A. Vol. 167
Part 1: 5-36
Simpson S and Norman P (1998) Case Study: Apportionment using counts of patients
and electors. In Simpson S. ed. Making Local Population Statistics: A Guide for Local
Practitioners. Local Authorities Research and Intelligence Association: Wokingham:
61-68
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Dr Paul Norman
Cathie Marsh Centre for Census & Survey Research
University of Manchester
http://www.ccsr.ac.uk/staff/pn.html
[log in to unmask]
01756 797672 (h)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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