In the NICE management of atrial fibrillation guidance (Clinical Guideline 180), it is recommended that patients being considered for, or taking, anticoagulants should have their risk of bleeding assessed using the HAS-BLED Score. ORBIT is based on an assessment of age [75+ years], reduced haemoglobin/ haematocrit/ history of anaemia, bleeding history, insufficient kidney function, and treatment with antiplatelet and is thus simpler to administer than HAS-BLED which also includes assessment of hypertension, liver disease, stroke, INR history, and alcohol use.