Fig. 1

Flow chart. a Due to extreme body weight or due to primary physicians' preference to use other medications such as unfractionated heparin or tinzaparin. b Participant’s decision: peak anti-xa levels were not available in two patients because in one patient the blood was drawn incorrectly, and in the second patient participant refused to draw blood for peak level. c Investigator’s decision (Adverse event): participant experienced hematuria therefore treatment discontinued before the 3rd dose was given, however the trough level was drawn. d Discharged before levels were drawn. e Three patients discontinued the intervention due to investigator’s decision, one was a man who had low body weight 48 kg and elevated SrCr, second patient had their third dose discontinued before endoscopic biopsy, third patient was found to have a retroperitoneal bleed after one dose of enoxapain therefore the treatment was discontinued. f Primary outcome, peak anti-xa levels were not drawn in 3 patients as mentioned above in the follow up section. As such, only trough levels for these patients were available. g Trough anti-xa level was excluded because sample clotted