The SOAR scale can help to predict patient mortality associated with an acute stroke.
SOAR is an acronym for Stroke type, Oxfordshire Community Stroke Project classification, Age and prestroke modified Rankin status.
Patient selection: acute stroke
Outcome: in-hospital and 7-day mortality
Parameters:
(1) age in years
(2) stroke type
(3) Oxfordshire Community Stroke Project (OCSP) classification
(4) prestroke modified Rankin
|
Parameter
|
Finding
|
Points
|
|
age in years
|
<= 65
|
0
|
|
|
66 to 85
|
1
|
|
|
>= 86
|
2
|
|
stroke type
|
infarct
|
0
|
|
|
hemorrhage
|
1
|
|
OCSP
|
total anterior circulation stroke
|
2
|
|
|
partial anterior circulation stroke
|
0
|
|
|
posterior circulation stroke
|
0
|
|
|
lacunar stroke
|
1
|
|
prestroke modified Rankin
|
0
|
0
|
|
|
1
|
0
|
|
|
2
|
0
|
|
|
3
|
1
|
|
|
4
|
1
|
|
|
5
|
2
|
total score =
= SUM(points for all 4 parameters)
Interpretation:
• minimum score: 0
• maximum score: 7
|
Score
|
Hospital Mortality
|
|
0
|
1.6%
|
|
1
|
4%
|
|
2
|
10.7%
|
|
3
|
21.4%
|
|
4
|
46.6%
|
|
5
|
62.7%
|
|
6 or 7
|
75.8%
|
Performance:
• The area under the ROC curve is 0.79.
