| AF | Atrial fibrillation |
| ATRIA | AnTicoagulation and Risk factors In Atrial fibrillation |
| AUC | Area under the curve |
| CHADS2 | Congestive heart failure, hypertension, age ≥ 75 years, diabetes, stroke/transient ischemic attack/thromboembolism [doubled] |
| CHA2DS2-VASc | Congestive heart failure, hypertension, age ≥ 75 years [doubled], diabetes, stroke/transient ischemic attack/thromboembolism [doubled], vascular disease [prior myocardial infarction, peripheral artery disease, or aortic plaque], age 65–75 years, sex category [female] |
| CRUSADE | Can Rapid risk stratification of Unstable angina patients Suppress ADverse outcomes with Early implementation of the ACC/AHA guidelines |
| DACH | Germany (Deutschland), Austria, Switzerland (Confederatio Helvetica) |
| eCRF | Electronic case report form |
| GOF | Hosmer and Lemeshow goodness-of-fit test |
| GRACE | Global Registry of Acute Coronary Events |
| HAS-BLED | hypertension, abnormal renal/liver function, stroke, bleeding history or predisposition, labile international normalized ratio [INR], elderly [age ≥ 65 years], drugs/alcohol concomitantly |
| IDI | Integrated discrimination improvement |
| ISTH | International Society on Thrombosis and Haemostasis |
| NRI | Net reclassification improvement |
| NOAC | non-vitamin K antagonist oral anticoagulant |
| PREFER in AF | Prevention of Thromboembolic Events—European Registry in Atrial Fibrillation” study |
| SD | Standard deviation of the mean |
| SEE | Systemic embolic event |
| TIA | Transient ischemic attack |
| TIMI | Thrombolysis In Myocardial Infarction |
| VKA | Vitamin K antagonist |