Categorization of bleeding symptoms
The bleeding symptoms were evaluated according to the International Working Group (IWG) bleeding scale. In this scale, bleeding manifestations are grouped into three major domains: skin (S), visible mucosae (M), and organs (O), with a gradation of severity (SMOG). The patients were graded based on physical examination at the time of the visit or on the patient’s history and medical reports. The severity of bleeding, as defined in this scale, was graded from 0 to 4 (8).