Rutherford et al reported scores for the risk of bleeding in a patient treated with noon-vitamin K oral anticoagulant (NOAC). These include both full and abbreviated models. The authors are from multiple institutions in Norway.
Patient selection: therapy with non-vitamin K oral anticoagulant (NOAC)
Parameters:
(1) age in years
(2) history of bleeding
(3) hospitalized for non-bleeding issue in past 12 months
Parameter
Finding
Points
age
< 65 years
0
65 to 75 years
1
> 75 years
2
history of bleeding
no
0
yes
2
hospitalized
no
0
yes
1
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 5
Total Score
1-Year Cumulative Risk of Bleeding
0
2.3%
1
4.5%
2
7.1%
3
11.5%
4
19.4%
5
20.3%
Performance:
• The area under the ROC curve is 0.66.
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