I've downloaded the genetic data in ADNI1, only including the .PLINK format. I wonder why the number of subjects in .PLINK file is 757 but not 818 and which procedures it had been processed.
In addition, I found that the genetic document in ADNI1 cannot detail the dataset. I feel confused about the dataset. Is there any instruction for the .PLINK file?
Thanks for your help!
1. The ADNI1 participants with consent issues were removed.
2. Please look at this website for plink: http://zzz.bwh.harvard.edu/plink/
Thanks for your reply. There still remain questions as follows:
1. Could you please provide a list of Caucasians in ADNI1? I failed to find such information in .PLINK file.
Thanks again!
There are approaches to choose Caucasians from ADNI1:
1. using GWAS genotype data: please do literature searching to learn the approach.
2. using the demographic information: please download the information from the ADNI LONI data repository.
Thank you for your patient.
Can you provide the link to download the demographic information of ADNI1?