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. 2016 Sep 26;6(9):e011471. doi: 10.1136/bmjopen-2016-011471

Table 4.

Comparison of OAC non-persistence among OAC naïve patients

95% CI
HR Lower Upper p Value
During the first 2 months of follow-up (N=11 647)
Index medication (reference category: apixaban)
 Rivaroxaban 1.49 1.00 2.22 0.052
 Dabigatran 1.65 1.08 2.52 0.022
 VKA 0.33 0.22 0.48 <0.001
History of stroke risk factors (yes vs no)
 Vascular disease 0.81 0.66 0.99 0.037
 Hypertension 0.81 0.68 0.96 0.015
Concomitant therapy* (yes vs no)
 Aspirin 2.79 2.30 3.38 <0.001
 Other antiplatelet 1.89 1.40 2.54 <0.001
After the first 2 months of follow-up (N=10 977)
Index medication (reference category: apixaban)
 Rivaroxaban 1.58 0.98 2.55 0.059
 Dabigatran 2.10 1.30 3.41 0.003
 VKA 1.70 1.08 2.66 0.021
Demographics
 Age at index date (years) 0.99 0.98 0.99 <0.001
 Country (reference category: England)
  Wales 0.57 0.48 0.68 <0.001
  Scotland 1.14 0.99 1.31 0.078
  Northern Ireland 0.84 0.66 1.07 0.151
History of stroke risk factors (yes vs no)
 Vascular disease 0.89 0.80 0.99 0.036
 Hypertension 0.88 0.80 0.96 0.005
Concomitant therapy* (yes vs no)
 Parenteral anticoagulants 1.49 1.07 2.07 0.020
 Aspirin 1.38 1.23 1.56 <0.001
 Other antiplatelet 1.57 1.31 1.87 <0.001

*Concomitant therapy: prescribed on index date or within 3 months after index date.

OAC, oral anticoagulants; VKA, vitamin K antagonists.