Pooled proportions of patients with venous thromboembolism (VTE) recurrence after upper extremity vein thrombosis (UEVT). A, VTE recurrence rate for patients treated with direct oral anticoagulants (DOACs), low-molecular-weight heparin (LMWH), and vitamin K antagonists (VKAs) was 3%, 2%, and 4%, respectively. B, VTE recurrence rate for patients with cancer, patients without cancer, and patients with cancer and central venous catheter (CVC)-related thrombosis was 6%, 3%, and 5%, respectively. CI, Confidence interval.