Table 2.

Exclusion criteria for deferred workup in eligible patients (N = 1653)

n (%) with criterionn (%) with only criterion
Anticoagulation* 447 (27.0) 329 (19.9) 
 Empiric anticoagulation treatment in primary care before referral 328 (19.8) 245 (14.8) 
 Regular prescription of anticoagulation treatment 129 (7.8) 76 (4.6) 
 Both empiric and regular use of anticoagulation treatment 10 (0.6) 8 (0.5) 
Patient objects to discharge 192 (11.6) 117 (7.1) 
Physician deems discharge unsafe 189 (11.4) 89 (5.4) 
Suspected active or recent bleeding 70 (4.2) 11 (0.7) 
GFR <45 mL/min per 1.73 m2 66 (4.0) 17 (1.0) 
Active cancer or chemotherapy within the past 6 mo 65 (3.9) 23 (1.4) 
Major risk factors for bleeding 59 (3.6) 4 (0.2) 
Logistical challenges for at-home observation 45 (2.7) 16 (1.0) 
Workup expected to complete within 2 h 44 (2.7) 28 (1.7) 
Medications possibly interacting with rivaroxaban 44 (2.7) 10 (0.6) 
Hemoglobin <11 g/dL and/or thrombocytes <100 × 109/L 39 (2.4) 6 (0.4) 
Pregnancy or lactation 23 (1.4) 14 (0.8) 
Suspected concurrent PE 22 (1.3) 2 (0.1) 
Comorbidities necessitating admission 20 (1.2) 2 (0.1) 
Suspected ischemia or eligibility for thrombolysis 4 (0.2) 0 (0) 
Liver disease 2 (0.1) 0 (0) 
n (%) with criterionn (%) with only criterion
Anticoagulation* 447 (27.0) 329 (19.9) 
 Empiric anticoagulation treatment in primary care before referral 328 (19.8) 245 (14.8) 
 Regular prescription of anticoagulation treatment 129 (7.8) 76 (4.6) 
 Both empiric and regular use of anticoagulation treatment 10 (0.6) 8 (0.5) 
Patient objects to discharge 192 (11.6) 117 (7.1) 
Physician deems discharge unsafe 189 (11.4) 89 (5.4) 
Suspected active or recent bleeding 70 (4.2) 11 (0.7) 
GFR <45 mL/min per 1.73 m2 66 (4.0) 17 (1.0) 
Active cancer or chemotherapy within the past 6 mo 65 (3.9) 23 (1.4) 
Major risk factors for bleeding 59 (3.6) 4 (0.2) 
Logistical challenges for at-home observation 45 (2.7) 16 (1.0) 
Workup expected to complete within 2 h 44 (2.7) 28 (1.7) 
Medications possibly interacting with rivaroxaban 44 (2.7) 10 (0.6) 
Hemoglobin <11 g/dL and/or thrombocytes <100 × 109/L 39 (2.4) 6 (0.4) 
Pregnancy or lactation 23 (1.4) 14 (0.8) 
Suspected concurrent PE 22 (1.3) 2 (0.1) 
Comorbidities necessitating admission 20 (1.2) 2 (0.1) 
Suspected ischemia or eligibility for thrombolysis 4 (0.2) 0 (0) 
Liver disease 2 (0.1) 0 (0) 
*

Regular prescription or empiric anticoagulation for suspected DVT.

Associated with coagulopathy or other bleeding risk.

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