• Select the area you would like to search.
  • ACTIVE INVESTIGATIONS Search for current projects using the investigator's name, institution, or keywords.
  • EXPERTS KNOWLEDGE BASE Enter keywords to search a list of questions and answers received and processed by the ADNI team.
  • ADNI PDFS Search any ADNI publication pdf by author, keyword, or PMID. Use an asterisk only to view all pdfs.


Question Posted 02/25/20:
I’m Seong-jin Son who is studying at the Centerfor Neuroscience Imaging Research in Korea.

To check the demographic information of theparticipant in the ADNI database, I was looking into PTDEMOG.csv and I have aquestion for you.

The 'PTTLANG' and 'PTPLANG' fields in the'PTDEMOG.csv' file are understood to mean 'Language to be used for testing theParticipant' and 'Participant's Primary Language', respectively.

But I can't find the label and its meaninganywhere in each field.

Please notice me the meaning of the labelsin the 'PTTLANG' and 'PTPLANG' fields.

Thank you.
Response posted 02/26/20 by Monica:
Please refer to the data dictionary, which can be obtained via DOWNLOAD-->Study Data-->Study Info-->Data &Database in the ADNI repository
Go back to list of topics >