Figure 3.

Progression in Villalta and postthrombotic syndrome (PTS) severity among the same population. Improvements in (A) median Villalta score and (B) PTS severity from baseline were observed at 30 days, 6 months, and 1 year among limbs assessed at all study time points. Boxes represent IQR (Q1, Q3) with horizontal bars representing median values and vertical lines representing 1.5× (Q1-Q3). P values comparing follow-up and baseline assessment values were derived from the Wilcoxon signed-rank test for the Villalta score and the McNemar-Bowker test for PTS severity.