Are there any statistics on the risk of developing new blood clots (pulm. embolism) when on blood thinner (lifelong treatment)? inr is stable. thanks.

Warfarin Failure: Warfarin Failure is the development of a new clot while on warfarin at a therapeutic dose: 2-3 % of patients with previous unprovoked clot over 1-4 years on treatment with warfarin , 17 % of patients who had a clot due to cancer over 6 months on treatment with warfarin 11 % of patients with clot due to lupus anticoagulant and antiphospholipid antibody syndrome.