To asses bleeding risk

Risk Factor For Bleeding Points Attributed
(older (75 years or older) 1 point
reduced haemoglobin (<13 mg/dL in men and <12 mg/dL in women), haematocrit (<40% in men and <36% in women) or history of anaemia 2 points
bleeding history 2 points
insufficient kidney function (eGFR < 60 mg/dL/1.73 m2) 1 point
treatment with an antiplatelet agent 1 point

Interpretation:
ORBIT Score

Risk group

Bleeds per 100 patient-years

0-2

Low

2.4

3

Medium

4.7

4-7

High

8.1