Table 3.

Cox proportional hazards model survival analysis.

Statistical MethodSample SizeBayesian Hazard Ratio*, median (95% CrI)
SScPAH
  Unmatched data2751.50 (1.02, 2.19)
  Matched data, noninformative prior981.09 (0.59, 2.02)
  Matched data, informative optimistic prior981.06 (0.70, 1.63)
  Matched data, informative optimistic prior980.94 (0.65, 1.46)
IPAH
  Unmatched data1551.31 (0.63, 2.92)
  Matched data, noninformative prior661.01 (0.35, 3.01)
  Matched data, informative group prior661.07 (0.57, 1.98)
  Matched data, informative optimistic prior660.94 (0.54, 1.64)
  • * Hazard ratio > 1 indicates increased mortality associated with warfarin exposure. Hazard ratio < 1 indicates decreased mortality associated with warfarin exposure. CrI: credible interval; SScPAH: scleroderma-associated pulmonary arterial hypertension; IPAH: idiopathic PAH.