LISTSERV at the University of Georgia
Menubar Imagemap
Home Browse Manage Request Manuals Register
Previous messageNext messagePrevious in topicNext in topicPrevious by same authorNext by same authorPrevious page (January 2002, week 1)Back to main SAS-L pageJoin or leave SAS-L (or change settings)ReplyPost a new messageSearchProportional fontNon-proportional font
Date:         Mon, 7 Jan 2002 06:40:23 -0700
Reply-To:     "Stanley A. Gorodenski" <vvgsgor@DE.STATE.AZ.US>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         "Stanley A. Gorodenski" <vvgsgor@DE.STATE.AZ.US>
Subject:      Re: Statistical Significance of Change in Virus Levels
Content-Type: text/plain; charset=us-ascii

This looks like it could be a factorial analysis design of patients by drug dose by time. If so, that would be a better alternative. Stan

Melanie Barish wrote:

> Hello all - I am assuming some statistical duties temporarily, and I am > pretty rusty at it. I have a sample of data from of study of virus levels > in blood over time. There are 5 groups of patients, each having a > different drug dose, and measurements were taken over 8 time points. I > need to find out if the changes in virus levels are significant. I want > to do this for each patient overall, looking at overall change from 1st > measurement to last. I also want to look at change at each time point. > And at some point, I need to compare the significance between dosing > regimens. > > My question is this: Is the t-test the best method for me to do this? I > know it tests the significance between means for two populations. I > technically have only one population though. If the t-test is not the > right test, can you suggest one that I can use? > > Thanks in advance, > > Melanie > > ***************************************** > Melanie J Barish > Clinical Programmer Analyst > Progenics Pharmaceuticals, Inc > > 914-789-2864 > > *****************************************

Back to: Top of message | Previous page | Main SAS-L page