Variable Details

Available Studies

ROS, MAP, MARS, Clinical Core, LATC

Scaled? 

Not Scaled

Variable Type 

Longitudinal

Variable Name 

fasting

Categories

Blood Measures

Fasting status
Fasting status at time of blood draw

Fasting status is reported at the time of blood draw. Participants are asked to report the time of their last meal. If a participant is unable to answer the question, a nurse or caregiver's response is recorded, if available. Participants who are impaired and cannot answer questions clearly are marked as "don't know." A participant is considered fasting if the last meal was consumed at least 8 hours prior to the time of blood draw.

ValueCoding
1Yes
2No

Note: "Don't know" is coded as a missing value.