Category 1 (Total monthly cost of Warfarin therapy) Category 2 (Total monthly cost of Warfarin therapy) P value
UAT Approach
Baseline (mean cost: $1.23±0.50) After first follow up  (mean cost: $1.19±0.55) 1.000
  After second follow up  (mean cost: $1.23±0.54) 1.000
  After third follow up  (mean cost: $1.25±0.53) 1.000
After first follow up After second follow up 0.079
  After third follow up 0.043
After second follow up After third follow up 1.000
PPAC Approach
Baseline (mean cost: $1.13±0.44) After first follow up  (mean cost: $0.65±0.22) 0.000
  After second follow up  (mean cost: $0.66±0.21) 0.000
  After third follow up  (mean cost: $0.66±0.21) 0.000
After first follow up After second follow up 1.000
  After third follow up 1.000
After second follow up After third follow up 1.000
Table 4: Comparison of total monthly cost of warfarin therapy between UAT and PPAC approaches.