Available Studies
ROS, MAP, MARS, Clinical Core, LATC
Categories
Medical Conditions
History of head injury with loss of consciousness at baseline is self-reported based on two questions.
Q1: Have you EVER had a head injury? 1 = Yes (then branch to next question) 2 = No
IF YES then:
Q2: Have you EVER lost consciousness because of a head injury? 1 = Yes 2 = Suspect or possible 3 = No
Value | Coding |
---|---|
0 | No history of head injury - No head injury reported or reported head injury without loss of consciousness (includes suspect or possible loss of consciousness) |
1 | History of head injury with loss of consciousness - Reported at baseline |
Note: these questions are asked at each annual assessment and the longitudinal version of this variable is available upon request