Hi Martin, I am reposting this. Should we include the missing baseline in the qdec table or leave it out?
Thanks! Mihaela On Wed, Apr 13, 2016 at 8:30 AM, Mihaela Stefan <mikaelastep...@gmail.com> wrote: > Hi Martin! > Sorry to bug you but I have one more question. How do I create the Qdec > table without the baseline for that subject? Do I leave the baseline time > point out or I still enter it in the table? > > For example > fsid fsid-base years > Study1_Subj1_MRI0. Study1_Subj1. 0 > Study1_Subj1_MRI1. Study1_Subj1. 1.25 > Study1_Subj1_MRI2. Study1_Subj1. 2.25 > > OR > > Study1_Subj1_MRI1. Study1_Subj1. 1.25 > Study1_Subj1_MRI2. Study1_Subj1. 2.25 > > Thanks! > Mihaela > On Apr 12, 2016 7:13 PM, "Martin Reuter" <mreu...@nmr.mgh.harvard.edu> > wrote: > >> It does not compute this. Often people use time-from-baseline for their >> analysis and control for age (@ baseline). >> Best Martin >> On Apr 12, 2016 6:23 PM, Mihaela Stefan <mikaelastep...@gmail.com> wrote: >> >> Thanks Martin! >> >> Related to the longitudinal analysis, should we use the demeaned age at >> baseline or the LME package automatically computes this? >> >> Thanks again! >> Mihaela >> On Apr 12, 2016 5:39 PM, "Martin Reuter" <mreu...@nmr.mgh.harvard.edu> >> wrote: >> >> Hi Michael, >> the longitudinal image processing pipeline does not care which one is >> baseline and which are follow ups. It only cares what images belong to the >> same subject. >> So, yes you can process this one with only two tone points instead of >> three. >> >> Best Martin >> On Apr 12, 2016 5:09 PM, Mihaela Stefan <mikaelastep...@gmail.com> wrote: >> >> Hello FreeSurfers, >> >> We are conducting a longitudinal analysis and we have a subject who is >> missing the structural at baseline (it has fMRI data though). That subject >> returned for the 1st and the 2nd follow-up. Can we process the longitudinal >> pipeline the usual way and account for the missing baseline in the LME >> analysis? >> >> The other option would be to treat the 1st follow-up as baseline but we >> would like to be consistent with the fMRI analyses and keep the baseline >> time point. >> >> Thanks! >> Mihaela >> >> >> _______________________________________________ >> Freesurfer mailing list >> Freesurfer@nmr.mgh.harvard.edu >> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >> >> >> The information in this e-mail is intended only for the person to whom it >> is >> addressed. If you believe this e-mail was sent to you in error and the >> e-mail >> contains patient information, please contact the Partners Compliance >> HelpLine at >> http://www.partners.org/complianceline . If the e-mail was sent to you >> in error >> but does not contain patient information, please contact the sender and >> properly >> dispose of the e-mail. >> >> >> _______________________________________________ >> Freesurfer mailing list >> Freesurfer@nmr.mgh.harvard.edu >> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >> >> >> The information in this e-mail is intended only for the person to whom it >> is >> addressed. If you believe this e-mail was sent to you in error and the >> e-mail >> contains patient information, please contact the Partners Compliance >> HelpLine at >> http://www.partners.org/complianceline . If the e-mail was sent to you >> in error >> but does not contain patient information, please contact the sender and >> properly >> dispose of the e-mail. >> >>
_______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
