Variable Details

Available Studies

ROS, MAP, MARS, Clinical Core, LATC


Not Scaled

Variable Type 


Variable Name 



Medical Conditions

Medical conditions
Self-reported medical condition - baseline

Self-reported medical conditions is a composite measure of 7 medical conditions:

  1. Hypertension
  2. Diabetes
  3. Heart disease
  4. Cancer
  5. Thyroid disease
  6. Head injury with loss of consciousness
  7. Stroke

Conditions 1-6 are classified based on medical history. A clinical diagnosis of stroke is made based on history, neurological examination, and review of prior brain scan (if available). The composite measure is created by summing the number of conditions present*. These conditions were present in at least 5 percent of persons at baseline.

*Note: only calculated if three or more of the conditions are non-missing.

The total number of conditions present at baseline is used as an index of chronic illness.

Value Code
0 No conditions present
1 1 condition present
2 2 conditions present
3 3 conditions present
4 4 conditions present
5 5 conditions present
6 6 conditions present
7 7 conditions present

A longitudinal version of this variable is available for every annual assessment, upon request.