Question
Question Posted 09/07/24:
I find that the adnimerge maybe lose some data ,such as"136_S_4956" this subject, whose phase is ADNI2.I can get its imaging or diagnosis,but I can't find its data in the adnimerge.csv or R package.was it deleted?why I can't find it
I find that the adnimerge maybe lose some data ,such as"136_S_4956" this subject, whose phase is ADNI2.I can get its imaging or diagnosis,but I can't find its data in the adnimerge.csv or R package.was it deleted?why I can't find it
Response posted 09/09/24 by Adam Diaz:
Hello,
The ADNIMERGE package only includes data for participants who enrolled in the study. The participant in question (PTID 136_S_4956) completed a screening visit during ADNI2, but was never enrolled - this could be due to inclusion/exclusion criteria, or they may have been lost to follow-up before their scheduled baseline visit. The images available for that subject correspond to their screening MRI.
If you still wish to include this subject in some kind of analysis, information on diagnostic group and inclusion/exclusion criteria can be found on the LONI IDA in the diagnostic summary table, and inclusion/exclusion criteria tables.
The ADNIMERGE package only includes data for participants who enrolled in the study. The participant in question (PTID 136_S_4956) completed a screening visit during ADNI2, but was never enrolled - this could be due to inclusion/exclusion criteria, or they may have been lost to follow-up before their scheduled baseline visit. The images available for that subject correspond to their screening MRI.
If you still wish to include this subject in some kind of analysis, information on diagnostic group and inclusion/exclusion criteria can be found on the LONI IDA in the diagnostic summary table, and inclusion/exclusion criteria tables.
