Table 4.

VTE-related outcomes during anticoagulation and after its discontinuation, according to IT testing, and patient groups of interest

Patient PopulationThrombophilia StatusNumber of PatientsDuration of AC Therapy (Months)
Median, IQR
Recurrent VTE on AC (Events/100 PY)Recurrent VTE after AC Discontinuation (Events/100 PY)Major Bleeding Events (Events/100 PY)Mortality (Events/100 PY)VTE-related mortality (Events/100 PY)Bleeding-related mortality (Events/100 PY)Cancer-related mortality (Events/100 PY)Notes
Patients with VTE provoked by recent surgery Patients not tested for IT 9018 4.70 (3.15-7.69) 3.18 (2.73-3.67) 5.46 (4.78-6.20) 3.58 (3.22-3.97) 10.8 (10.2-11.5) 0.62 (0.48-0.79) 0.46 (0.34-0.61) 4.22 (3.83-4.63)  
 Tested patients (all) 2075 6.41 (4.01-11.0)  3.72 (2.92-4.69) 4.63 (3.78-5.62) 1.21 (0.91-1.58)  1.79 (1.42-2.22)  0.07 (0.02-0.19)  0.07 (0.02-0.19)  0.93 (0.67-1.25)   
 Negative thrombophilia 1314 6.23 (3.91-9.63)  3.91 (2.82-5.29) 3.42 (2.57-4.48)  1.28 (0.90-1.78)  1.64 (1.20-2.18)  0.04 (0.00-0.19)  0.08 (0.01-0.25)  0.84 (0.54-1.25)   
 All positive thrombophilia 761 7.00 (4.21-12.6)  3.51 (2.41-4.95) 7.25 (5.42-9.50) 1.10 (0.67-1.70)  2.03 (1.43-2.80)  0.12 (0.02-0.39)  0.06 (0.00-0.29)  1.07 (0.66-1.66)   
Patients with VTE provoked by immobilization ≥4 d Patients not tested for IT 19 199 4.47 (3.02-7.59) 3.57 (3.24-3.94) 8.38 (7.65-9.16) 5.31 (4.98-5.67) 25.3 (24.5-26.0) 1.98 (1.78-2.19) 1.15 (1.00-1.32) 5.95 (5.60-6.32)  
 Tested patients (all) 3762 6.14 (3.61-11.1)  2.67 (2.15-3.29)  6.36 (5.48-7.35)  1.52 (1.24-1.85)  3.65 (3.21-4.14)  0.16 (0.08-0.28)  0.19 (0.10-0.32)  0.90 (0.69-1.16)   
 Negative thrombophilia 2449 5.82 (3.52-9.03)  2.26 (1.64-3.03)  6.09 (5.06-7.27)  1.54 (1.19-1.97)  3.53 (2.98-4.15)  0.13 (0.05-0.28)  0.15 (0.06-0.31)  0.85 (0.60-1.17)   
 All positive thrombophilia 1313 7.03 (4.09-13.4)  3.25 (2.38-4.33) 6.95 (5.38-8.83) 1.48 (1.05-2.04)  3.86 (3.13-4.70)  0.21 (0.08-0.46)  0.25 (0.10-0.52)  1.00 (0.65-1.46)   
Patients with VTE provoked by estrogen use Patients not tested for IT 3466 5.22 (3.22-8.54) 2.55 (1.96-3.26) 4.61 (3.60-5.83) 2.12 (1.70-2.62) 8.89 (7.99-9.86) 0.46 (0.28-0.71) 0.31 (0.17-0.52) 4.25 (3.65-4.94)  
 Tested patients (all) 2365 6.54 (4.17-11.3)  1.56 (1.08-2.17)  2.35 (1.80-3.03)  0.59 (0.40-0.84)  0.58 (0.39-0.84)  0.04 (0.01-0.14)  0.32 (0.19-0.52)   
 Negative thrombophilia 1448 6.37 (4.01-9.76)  1.36 (0.79-2.20)  2.31 (1.63-3.17)  0.83 (0.53-1.23)  0.59 (0.35-0.94)  0.04 (0.00-0.18)  0.30 (0.14-0.56)   
 All positive thrombophilia 917 7.03 (4.57-12.4)  1.78 (1.07-2.79) 2.43 (1.56-3.62)  0.26 (0.10-0.58)  0.57 (0.30-0.99)  0.05 (0.00-0.26)  0.36 (0.16-0.72)   
Patients with VTE provoked by pregnancy or postpartum Patients not tested for IT 676 4.67 (3.22-7.20) 3.28 (1.72-5.70) 2.53 (1.23-4.63) 1.29 (0.63-2.38) 0.99 (0.43-1.97) 0.14 (0.01-0.70) 0.14 (0.01-0.70) 0.14 (0.01-0.70)  
 Tested patients (all) 608 6.47 (4.17-9.84)  3.02 (1.75-4.87) 1.13 (0.55-2.07) 0.53 (0.23-1.05) 0.08 (0.00-0.37)  0.08 (0.00-0.37)  
 Negative thrombophilia 313 6.34 (4.01-8.77)  2.95 (1.20-6.14) 0.23 (0.01-1.11)  0.46 (0.12-1.26)  
 All positive thrombophilia 295 6.64 (4.21-11.1)  3.07 (1.50-5.63) 2.27 (1.05-4.31) 0.60 (0.19-1.45) 0.15 (0.01-0.73)  0.15 (0.01-0.73)  
Unprovoked VTE Patients not tested for IT 40 190 6.11 (3.42-11.4) 2.34 (2.18-2.51) 9.73 (9.22-10.3) 2.10 (1.97-2.23) 5.82 (5.61-6.04) 0.51 (0.45-0.57) 0.36 (0.31-0.41) 0.47 (0.41-0.54)  
 Tested patients (all) 11 945 8.10 (5.22-15.1)  2.24 (2.00-2.49) 8.83 (8.22-9.48)  0.93 (0.81-1.06)  1.01 (0.90-1.15)  0.06 (0.03-0.09)  0.06 (0.04-0.10)  0.11 (0.08-0.16)   
 Negative thrombophilia 6959 7.59 (5.16-13.6)  2.19 (1.88-2.54) 8.23 (7.49-9.02)  1.02 (0.86-1.20)  0.99 (0.83-1.16)  0.06 (0.03-0.11)  0.06 (0.03-0.11)  0.13 (0.08-0.20)   
 All positive thrombophilia 4986 9.05 (5.39-18.2)  2.29 (1.95-2.67) 9.90 (8.83-11.07) 0.81 (0.65-1.00)  1.05 (0.87-1.26)  0.06 (0.02-0.12)  0.07 (0.03-0.14)  0.09 (0.05-0.17)   
Patients with splanchnic vein thrombosis Patients not tested for IT 611 4.67 (2.92-9.33) 3.26 (1.81-5.43) 7.39 (4.11-12.32) 7.85 (5.78-10.5) 26.6 (22.7-31.0) 0.17 (0.01-0.84) 1.52 (0.74-2.80) 14.7 (11.9-18.1)  
 Tested patients (all) 287 8.41 (3.75-20.4)  2.25 (1.10-4.12) 1.00 (0.17-3.31)  1.48 (0.72-2.72)  1.13 (0.50-2.24)  0.16 (0.01-0.80)  0.32 (0.05-1.07)   
 Negative thrombophilia 171 6.18 (3.52-16.4)  2.66 (0.97-5.89) 1.56 (0.26-5.16)  0.93 (0.24-2.52)  0.61 (0.10-2.01)  0.61 (0.10-2.01)   
 All positive thrombophilia 116 12.0 (4.11-28.8)  1.88 (0.60-4.54) 2.12 (0.86-4.41)  1.73 (0.64-3.85)  0.35 (0.02-1.71)  
Patients with cerebral sinus vein thrombosis Patients not tested for IT 162 5.22 (3.24-10.1) 1.55 (0.26-5.11) 2.56 (0.43-8.47) 3.91 (1.82-7.42) 8.62 (5.27-13.4) 0.48 (0.02-2.36) 0.96 (0.16-3.16) 2.87 (1.16-5.97)  
 Tested patients (all) 130 9.00 (5.32-15.8)  1.12 (0.19-3.70) 1.76 (0.30-5.82) 1.37 (0.44-3.31) 2.35 (1.03-4.65)  0.67 (0.11-2.22) 1.68 (0.62-3.72)  
 Negative thrombophilia 70 10.2 (4.58-15.9)  1.20 (0.06-5.94) 3.06 (0.51-10.10) 2.03 (0.52-5.51) 2.60 (0.83-6.26)  0.65 (0.03-3.20) 1.95 (0.50-5.30)  
 All positive thrombophilia 60 8.18 (5.82-14.9)  1.05 (0.05-5.17) 0.70 (0.03-3.43) 2.09 (0.53-5.68)  0.70 (0.03-3.43) 1.39 (0.23-4.59)  
Patient PopulationThrombophilia StatusNumber of PatientsDuration of AC Therapy (Months)
Median, IQR
Recurrent VTE on AC (Events/100 PY)Recurrent VTE after AC Discontinuation (Events/100 PY)Major Bleeding Events (Events/100 PY)Mortality (Events/100 PY)VTE-related mortality (Events/100 PY)Bleeding-related mortality (Events/100 PY)Cancer-related mortality (Events/100 PY)Notes
Patients with VTE provoked by recent surgery Patients not tested for IT 9018 4.70 (3.15-7.69) 3.18 (2.73-3.67) 5.46 (4.78-6.20) 3.58 (3.22-3.97) 10.8 (10.2-11.5) 0.62 (0.48-0.79) 0.46 (0.34-0.61) 4.22 (3.83-4.63)  
 Tested patients (all) 2075 6.41 (4.01-11.0)  3.72 (2.92-4.69) 4.63 (3.78-5.62) 1.21 (0.91-1.58)  1.79 (1.42-2.22)  0.07 (0.02-0.19)  0.07 (0.02-0.19)  0.93 (0.67-1.25)   
 Negative thrombophilia 1314 6.23 (3.91-9.63)  3.91 (2.82-5.29) 3.42 (2.57-4.48)  1.28 (0.90-1.78)  1.64 (1.20-2.18)  0.04 (0.00-0.19)  0.08 (0.01-0.25)  0.84 (0.54-1.25)   
 All positive thrombophilia 761 7.00 (4.21-12.6)  3.51 (2.41-4.95) 7.25 (5.42-9.50) 1.10 (0.67-1.70)  2.03 (1.43-2.80)  0.12 (0.02-0.39)  0.06 (0.00-0.29)  1.07 (0.66-1.66)   
Patients with VTE provoked by immobilization ≥4 d Patients not tested for IT 19 199 4.47 (3.02-7.59) 3.57 (3.24-3.94) 8.38 (7.65-9.16) 5.31 (4.98-5.67) 25.3 (24.5-26.0) 1.98 (1.78-2.19) 1.15 (1.00-1.32) 5.95 (5.60-6.32)  
 Tested patients (all) 3762 6.14 (3.61-11.1)  2.67 (2.15-3.29)  6.36 (5.48-7.35)  1.52 (1.24-1.85)  3.65 (3.21-4.14)  0.16 (0.08-0.28)  0.19 (0.10-0.32)  0.90 (0.69-1.16)   
 Negative thrombophilia 2449 5.82 (3.52-9.03)  2.26 (1.64-3.03)  6.09 (5.06-7.27)  1.54 (1.19-1.97)  3.53 (2.98-4.15)  0.13 (0.05-0.28)  0.15 (0.06-0.31)  0.85 (0.60-1.17)   
 All positive thrombophilia 1313 7.03 (4.09-13.4)  3.25 (2.38-4.33) 6.95 (5.38-8.83) 1.48 (1.05-2.04)  3.86 (3.13-4.70)  0.21 (0.08-0.46)  0.25 (0.10-0.52)  1.00 (0.65-1.46)   
Patients with VTE provoked by estrogen use Patients not tested for IT 3466 5.22 (3.22-8.54) 2.55 (1.96-3.26) 4.61 (3.60-5.83) 2.12 (1.70-2.62) 8.89 (7.99-9.86) 0.46 (0.28-0.71) 0.31 (0.17-0.52) 4.25 (3.65-4.94)  
 Tested patients (all) 2365 6.54 (4.17-11.3)  1.56 (1.08-2.17)  2.35 (1.80-3.03)  0.59 (0.40-0.84)  0.58 (0.39-0.84)  0.04 (0.01-0.14)  0.32 (0.19-0.52)   
 Negative thrombophilia 1448 6.37 (4.01-9.76)  1.36 (0.79-2.20)  2.31 (1.63-3.17)  0.83 (0.53-1.23)  0.59 (0.35-0.94)  0.04 (0.00-0.18)  0.30 (0.14-0.56)   
 All positive thrombophilia 917 7.03 (4.57-12.4)  1.78 (1.07-2.79) 2.43 (1.56-3.62)  0.26 (0.10-0.58)  0.57 (0.30-0.99)  0.05 (0.00-0.26)  0.36 (0.16-0.72)   
Patients with VTE provoked by pregnancy or postpartum Patients not tested for IT 676 4.67 (3.22-7.20) 3.28 (1.72-5.70) 2.53 (1.23-4.63) 1.29 (0.63-2.38) 0.99 (0.43-1.97) 0.14 (0.01-0.70) 0.14 (0.01-0.70) 0.14 (0.01-0.70)  
 Tested patients (all) 608 6.47 (4.17-9.84)  3.02 (1.75-4.87) 1.13 (0.55-2.07) 0.53 (0.23-1.05) 0.08 (0.00-0.37)  0.08 (0.00-0.37)  
 Negative thrombophilia 313 6.34 (4.01-8.77)  2.95 (1.20-6.14) 0.23 (0.01-1.11)  0.46 (0.12-1.26)  
 All positive thrombophilia 295 6.64 (4.21-11.1)  3.07 (1.50-5.63) 2.27 (1.05-4.31) 0.60 (0.19-1.45) 0.15 (0.01-0.73)  0.15 (0.01-0.73)  
Unprovoked VTE Patients not tested for IT 40 190 6.11 (3.42-11.4) 2.34 (2.18-2.51) 9.73 (9.22-10.3) 2.10 (1.97-2.23) 5.82 (5.61-6.04) 0.51 (0.45-0.57) 0.36 (0.31-0.41) 0.47 (0.41-0.54)  
 Tested patients (all) 11 945 8.10 (5.22-15.1)  2.24 (2.00-2.49) 8.83 (8.22-9.48)  0.93 (0.81-1.06)  1.01 (0.90-1.15)  0.06 (0.03-0.09)  0.06 (0.04-0.10)  0.11 (0.08-0.16)   
 Negative thrombophilia 6959 7.59 (5.16-13.6)  2.19 (1.88-2.54) 8.23 (7.49-9.02)  1.02 (0.86-1.20)  0.99 (0.83-1.16)  0.06 (0.03-0.11)  0.06 (0.03-0.11)  0.13 (0.08-0.20)   
 All positive thrombophilia 4986 9.05 (5.39-18.2)  2.29 (1.95-2.67) 9.90 (8.83-11.07) 0.81 (0.65-1.00)  1.05 (0.87-1.26)  0.06 (0.02-0.12)  0.07 (0.03-0.14)  0.09 (0.05-0.17)   
Patients with splanchnic vein thrombosis Patients not tested for IT 611 4.67 (2.92-9.33) 3.26 (1.81-5.43) 7.39 (4.11-12.32) 7.85 (5.78-10.5) 26.6 (22.7-31.0) 0.17 (0.01-0.84) 1.52 (0.74-2.80) 14.7 (11.9-18.1)  
 Tested patients (all) 287 8.41 (3.75-20.4)  2.25 (1.10-4.12) 1.00 (0.17-3.31)  1.48 (0.72-2.72)  1.13 (0.50-2.24)  0.16 (0.01-0.80)  0.32 (0.05-1.07)   
 Negative thrombophilia 171 6.18 (3.52-16.4)  2.66 (0.97-5.89) 1.56 (0.26-5.16)  0.93 (0.24-2.52)  0.61 (0.10-2.01)  0.61 (0.10-2.01)   
 All positive thrombophilia 116 12.0 (4.11-28.8)  1.88 (0.60-4.54) 2.12 (0.86-4.41)  1.73 (0.64-3.85)  0.35 (0.02-1.71)  
Patients with cerebral sinus vein thrombosis Patients not tested for IT 162 5.22 (3.24-10.1) 1.55 (0.26-5.11) 2.56 (0.43-8.47) 3.91 (1.82-7.42) 8.62 (5.27-13.4) 0.48 (0.02-2.36) 0.96 (0.16-3.16) 2.87 (1.16-5.97)  
 Tested patients (all) 130 9.00 (5.32-15.8)  1.12 (0.19-3.70) 1.76 (0.30-5.82) 1.37 (0.44-3.31) 2.35 (1.03-4.65)  0.67 (0.11-2.22) 1.68 (0.62-3.72)  
 Negative thrombophilia 70 10.2 (4.58-15.9)  1.20 (0.06-5.94) 3.06 (0.51-10.10) 2.03 (0.52-5.51) 2.60 (0.83-6.26)  0.65 (0.03-3.20) 1.95 (0.50-5.30)  
 All positive thrombophilia 60 8.18 (5.82-14.9)  1.05 (0.05-5.17) 0.70 (0.03-3.43) 2.09 (0.53-5.68)  0.70 (0.03-3.43) 1.39 (0.23-4.59)  

Patients not tested for IT were used as reference for all comparisons with the remaining subgroups.

DVT, deep venous thrombosis; IQR, interquartile range; PY, patient-years.

P < .001.

P < .01.

P < .05.

Close Modal

or Create an Account

Close Modal
Close Modal