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st: Doubly interval-censored data

From   "Salah Mahmud" <[email protected]>
To   <[email protected]>
Subject   st: Doubly interval-censored data
Date   Wed, 24 Dec 2003 14:57:49 -0500

Does anyone know of the existence of Stata ado for estimating a survivor
function and its standard error where survival time (T) is defined as
the interval between two interval-censored events, i.e., both events are
only known to occur within an interval? This is the situation that
commonly arises in longitudinal studies of viral infections. For
instance T could be the time of clearing HPV infection when the dates of
acquisition and loss (clearance) of infection are not measured exactly
but known to occur between two consecutive dates (dates of prescheduled
follow-up visits).

Many thanks,


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