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st: survival curves for grouped data


From   Dan Exeter <[email protected]>
To   [email protected]
Subject   st: survival curves for grouped data
Date   Tue, 05 Jul 2005 11:47:22 +0100

Dear all,

I am relatively new to Stata and survival analysis.

I'd like to create a life table and an associated survival curve using data from a 3 year period. Unfortunately, I do not have any date of birth/ date of death/ lost to follow up data, and want to produce a 'current' or 'period' life table rather than a cohort life table

I've been trying the ltable command, but the median survival age is considerably younger than I would expect (having done the analysis in Excel already).

I have a count of the population alive, and population that died, at a given age (0-64years) for a three year period, and separately for males and females.

For example, my data are configured as follows:
age | living | dead | sex
0 | 1000 | 10 | 1
1 | 2000 | 2 | 1
..

I have these data for 3, 3-year periods, and would appreciate advice on how best to compare the results. Most of the literature that I have come across suggest the Kaplan-Meier and Logrank test. My data do not conform to the Kaplan-Meier requirements, and I am unsure if the logrank is suitable for grouped data.

I would be grateful for any help or suggestions

Best wishes
Dan





~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Dan Exeter. BA, MA(Hons), PhD.
Research Fellow
School of Geography and Geosciences
University of St Andrews
Irvine Building, North St
St Andrews
KY16 9AL
Phone: 01334 463951
Fax: 01334 463949
email: [email protected] <mailto:[email protected]>
Web: http://www.st-andrews.ac.uk/gg/People/Research/dje1/index.shtml

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