ToolsCalculators
IMPROVE bleeding risk score
IMPROVE bleeding risk score
Renal function (GFR)
Sex
Age
Active cancer
Rheumatic disease
Central venous catheter
Admission to ICU or CCU
Hepatic failure (INR >1.5)
Platelet count <50 x10^9/L
Bleeding in the 3 months before admission
Active gastroduodenal ulcer
Result0 points
Score <7 indicates lower bleeding risk; pharmacologic VTE prophylaxis is generally favoured if otherwise indicated.
- High-risk threshold
- >=7
When to use
- Weighing bleeding against thrombosis risk when deciding on pharmacologic VTE prophylaxis in medical inpatients.
Formula
Weighted points for renal function, male sex, age band, cancer, rheumatic disease, central line, ICU/CCU, hepatic failure, thrombocytopenia, recent bleeding, and gastroduodenal ulcer. A total >=7 defines high bleeding risk.