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Date:         Tue, 28 Feb 2012 22:39:19 +0800
Reply-To:     __Tan <goodmood.cynic8@GMAIL.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         __Tan <goodmood.cynic8@GMAIL.COM>
Subject:      Re: question about right censoring in survival analysis
In-Reply-To:  <201202241957.q1OJ8U09009519@waikiki.cc.uga.edu>
Content-Type: text/plain; charset=ISO-8859-1

Actually, its right censored. Although we did not know the result at the end point, the subject was included since the sampling process, which could not removed from the analysis process.

On Sat, Feb 25, 2012 at 3:57 AM, oloolo <dynamicpanel@yahoo.com> wrote:

> Yes, all of those replies are correct. > Actually, if the OP look into how the estimation goes, it is clear that all > these censoring concept is about at each time who should contribute > information to build the likelihood function, specifically the right amount > of ppl at risk and ppl having events happen. > > On Thu, 23 Feb 2012 17:09:29 -0500, bbser 2009 <bbser2009@GMAIL.COM> > wrote: > > >Since the object goes through the study period, there is useful > information > >being recorded about it. > >Instead of omit the object record, we should make use of it, which is why > >right-censoring techniques were introduced in the first place. > > > >Regards, Max > >(Maaxx) > > > >-----Original Message----- > >From: SAS(r) Discussion [mailto:SAS-L@LISTSERV.UGA.EDU] On Behalf Of sm > dong > >Sent: February-23-12 3:50 PM > >To: SAS-L@LISTSERV.UGA.EDU > >Subject: [SAS-L] question about right censoring in survival analysis > > > >Hi there: > > > >The definition of right-censoring is: The subjects whose Event time is > >longer than the study terminate time, without knowing when it is. My > >question is if one survives through the whole study period and not sure > >whether whether an event will happen or not, how are we going to treat > him? > >I don't think they are right censored. Then are they going to be deleted > >from the study? > > > >Thank you! >


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