FIGURE 1. A: The prevalence of intermittent venous claudication among 39 patients with prior I-FDVT, after a median 5-year (range 1–23 years) follow-up period; 43.6% (17 of 39) developed intermittent claudication at a median initial claudication distance of 130 m (interquartile range 105–268 m), the severity of which compelled 6 of them [35% (6 of 17)] or 15.4% (6 of 39) of the total to discontinue the treadmill at a median absolute claudication distance of 241 m (interquartile range 137–298 m). B: Distribution of initial and absolute claudication distances among the 17 patients of our study population with prior iliofemoral thrombosis and intermittent venous claudication.