To whom it may concern,
I am currently using the ADNIMERGE.csv file to analyze longitudinal data. I have noticed that the age of each participant with multiple visits does not change over the visits. I
Is there an updated version of this file where the age value is updated for each patient's visit?
Thank you!
The ADNIMERGE file only includes baseline age. You can use the information in the ADNIMERGE file (baseline age (AGE) and difference from EXAMDATE to initial EXAMDATE (Years_bl)) to compute the age at each visit.