A Practical Guide to Haemostasis

ATRIA Bleeding Score


The ATRIA Bleeding Score score is a clinical prediction rule for estimating the risk of bleeding in a patient about to commence anticoagulation with warfarin. The maximum score is 10 points.

The ATRIA Bleeding Score:

Select Criteria:

Men Hb <130g/L;  Women Hb <120g/L
3 Points
Severe Renal Disease:
eGFR < 30 mL/min or dialysis-dependent
3 Points
Age ≥75 yrs
2 Points
Any Prior Haemorrhage Diagnosis
1 Point
History of Hypertension
1 Point


Max Score 10 points

Total No. of Points Annual Risk of Haemorrhage [%] Bleed Risk Category
0-3 0.76% Low Risk
4 2.62% Intermediate Risk
5-10 5.76% High Risk

Click HERE to Reset