Firstly, thanks to Austin Nichols for his response to my Cumulative
Risk/Life tables query.
This follows the same basic theme. I have 1341 records in a cohort of
which 41 suffer a second cancer. I have calculated a value using date
of entry to risk and date of exit (or second cancer), exit-entry, in
years (/365.25) and stored as a variable 'intvlexityrs'. The censor
variable (existence of a second cancer) is a variable 'censvar'
I then -stset- the data:
stset intvlexityrs, failure(censvar)
-sts list- then produces an extensive life table as you would expect.
So I use at() as required. For each year:
-sts list, at(0(1)49)-
All records enter at time 0. The last observed exit is 48.19712.
I was asked if it was possible to store the resulting values from this
revised life table as variables, i.e. Time, Beg. Total, Fail, Survivor
function, Std. Error and 95% Confidence intervals. I was not sure of
the answer. Can -sts generate- provide what I want? A working example
or a push in the right direction would be most useful.
Regards,
Dave
****************************************************
Mr David L. Winter, HNC
I.T. Manager (BCCSS Study)
Department of Public Health & Epidemiology
Room 105, Public Health Building
University of Birmingham
Edgbaston
Birmingham
B15 2TT
UK
tel.: +44 (0)121 414 6766
fax.: +44 (0)121 414 7923
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