Would you be at a higher risk for deep vein thrombosis when you smoke and by how much ?

Cumulative risk: Dvt risk is cumulative and is realted to a number of factors, including smoking. Yes, smoking increases your risk of DVT but how much it increases your risk can't be accurately determined without knowing what your other risk factors too.

No increased risk.: There are 3 primary factors that increase the risk of dvt-venous stasis which occurs with inactivity such as long trips, bed rest or being in a cast. This is due to loss of the calf muscle pump. 2nd.-increased of clotting(hyper coagulable) such as occurs with clotting disorders and cancer and 3rd.-injury to the vein wall such as in trauma. Smoking is not a risk for DVT but it does constrict.