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st: Skipped vists or gaps in survival analysis
From
Tasha Amin <[email protected]>
To
Stata list <[email protected]>
Subject
st: Skipped vists or gaps in survival analysis
Date
Mon, 27 Aug 2012 15:53:52 -0400
Hi all:
I have panel data with multiple visits per individual. Visits are every 6 months. I have -stset- the data and will be using incidence density sampling to get case-control sets (so -stset- followed by -sttocc- and then -clogit-).
My question is, what is the best way to generate gaps for those with skipped visits? For example, if someone comes at visit 1 and then comes after 2 years for visit 5, what is the best way to generate a gap in _t so that we don't incorporate the missing 2 years into analysis time?
Is it using -stsplit- or is there some other way? Any suggestions would be appreciated.
Thanks,
Tasha Amin
PhD student, Epidemiology
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