MAP, MARS, Clinical Core, LATC
Available at baseline only in MAP, MARS and LATC.
The licensed to drive variable is based on self-report. Participants are asked to respond yes = 1 or no = 2 to the following question:
Are you currently licensed to drive?
Participants who answer affirmatively are asked 1-2 follow-up questions to assess if they have driven in the past 12 months.