Apixaban Adult 1 Anticoagulants 1 Arthroplasty, Replacement, Hip 1 Arthroplasty, Replacement, Knee 1 Article 1 Aspirin 1 Direct oral anticoagulants 1 ECT 1 Electroconvulsive therapy 1 Humans 1 Knee replacement 1 Prophylaxis 1 Rivaroxaban 1 Safety 1 Venous Thromboembolism 1 Venous thromboembolism 1 Warfarin 1 acetylsalicylic acid 1 adult 1 adverse event 1 aged 1 anticoagulant agent 1 apixaban 1 comorbidity 1 dalteparin 1 drug effect 1 female 1 hip replacement 1 hospital readmission 1