Fig. 6

miR-21 is a prognostic marker in DVT patients. a Kaplan–Meier curve for recurrent DVT in a cohort of 40 DVT patients grouped by the serum level of miR-21. b Villalta score was evaluated in all patients grouped by the serum level of miR-21. c Representative images for PTS using DSA. d Number of PTS patients within different severity grouped by serum level of miR-21. *p < 0.05 vs. high expression group