Hospital size
1 = Small
2 = Medium
3 = Large

Age category
1 = 45-54
2 = 55-64
3 = 65-74
4 = 75+

0 = Male
1 = Female

Physically active
0 = No
1 = Yes

Blood pressure
0 = Hypotension
1 = Normal
2 = Hypertension

Cholesterol
0 = Normal
1 = High

History of myocardial infarction
0 = None
1 = One
2 = Two
3 = Three

History of ischemic stroke
1 = One
2 = Two
3 = Three

History of hemorrhagic stroke
0 = None
1 = One
2 = Two

Taking anti-clotting drugs
0 = None
1 = Aspirin
2 = Heparin
3 = Warfarin

Initial Rankin score
-1 = D.O.A.

CAT scan result
-1 = D.O.A.
0 = No bleeding
1 = Bleeding found

Clot-dissolving drugs
-1 = D.O.A.
0 = None
1 = Drug A
2 = Drug B

Treatment result
-1 = D.O.A.
1 = Well
2 = Stable
3 = Critical
4 = Died

Post-event preventative surgery
-2 = Died in hospital
-1 = D.O.A.
0 = None
1 = Carotid endarterectomy
2 = Cerebral angioplasty

Post-event rehabilitation
-2 = Died in hospital
-1 = D.O.A.
0 = Short hospital care
1 = Extended hospital care
2 = Outpatient care
3 = Combination

Length of stay for rehabilitation
-2 = Died in hospital
-1 = D.O.A.

First event post-attack
-3 = Died post-hospital
-2 = Died in hospital
-1 = D.O.A.
0 = No event observed
1 = Myocardial infarction
2 = Ischemic stroke
3 = Hemorrhagic stroke
4 = Death

Time to first event post-attack
-3 = Died post-hospital
-2 = Died in hospital
-1 = D.O.A.

Second event post-attack
-4 = Did not have prior event
-3 = Died post-hospital
-2 = Died in hospital
-1 = D.O.A.
0 = No event observed
1 = Myocardial infarction
2 = Ischemic stroke
3 = Hemorrhagic stroke
4 = Death

Time to second event post-attack
-4 = Did not have prior event
-3 = Died post-hospital
-2 = Died in hospital
-1 = D.O.A.