AF	Atrial fibrillation
AF	Atrial Fibrillation
Anti-Xa	drug-specific assays
aPTT	Activated partial thromboplastin time
COPD	Chronic Obstructive Pulmonary Disease
CRNMB	Clinically relevant non-major bleeding
CYP	Cytochromeombin time
DOACs	Direct Oral Anticoagulants
ECT	Ecarin clotting time
GI	Gastrointestinal
GI	Gastrointestinal
ICH	Intracranial hemorrhage
ICH	Intracranial Hemorrhage
LMWH	Low Molecular Weight Heparin
Nd	The total number of patients in the DOACs group
Nk	the total number of patients in the vitamin K antagonist group
NSAIDs	Nonsteroidal Anti-inflammatory Drugs
PT	Prothrombin time
UFH	Unfractionated Heparin
VKA	Vitamin K Antagonist
VTE	Venous Thromboembolism