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Time to maintenance of minimally therapeutic anticoagulation (i.e., time to first of two consecutive therapeutic anti–factor Xa values [0.31–0.70 IU/mL]), with unfractionated heparin in normal saline (UFH-NS) and with unfractionated heparin in dextrose 5% in water (UFH-D5W). At each time point, the number of “patients at risk” was the number of study participants who had not yet achieved maintenance of therapeutic anticoagulation.
