Do lots of people get vascular insufficiency, or is it unusual?

See Below: "vascular insufficiency" can be subdivided into arterial and venous insufficiency. Arterial insufficiency can cause pain, claudication, and even gangrene. It's pretty common in smokers, as smoking causes a arterial disease. Otherwise, it's relatively rare. Venous insufficiency is usually when the valves fail; it's pretty common in heavier people, especially women, or people who stand a lot.