Table 3:

Efficacy and cost variables for antithrombotic medications compared to warfarin

MedicationEvent; OR (95% CI)Cost per month, $*
Any bleedAny strokeDeath
Acetylsalicylic acid90.59 (0.45 to 0.77)1.88 (1.40 to 2.51)1.04 (0.88 to 1.33)1.02
Apixaban90.67 (0.60 to 0.75)0.79 (0.66 to 0.94)0.88 (0.79 to 0.98)98.02
Dabigatran, 150 mg91.56 (0.50 to 5.74)0.65 (0.52 to 0.81)0.88 (0.77 to 1.01)100.32
Dabigatran, 110 mg90.80 (0.69 to 0.93)0.90 (0.74 to 1.10)0.91 (0.80 to 1.04)100.32
Edoxaban, 60 mg90.84 (0.77 to 0.90)0.86 (0.74 to 1.01)0.86 (0.82 to 1.01)85.20
Edoxaban, 30 mg90.59 (0.54 to 0.64)1.13 (0.97 to 1.32)0.86 (0.78 to 0.96)85.20
Rivaroxaban91.03 (0.95 to 1.11)0.88 (0.74 to 1.03)0.83 (0.69 to 1.00)86.10
Warfarin1.001.001.0039.45
Off medication0.77 (0.34 to 1.20)1.47 (1.29 to 1.65)3.03 (2.79 to 3.27)
  • Note: CI = confidence interval, OR = odds ratio.

  • * In 2018 Canadian dollars.

  • Relative risk (95% CI).3

  • Including cost of monitoring therapy.41