From: Prevalence of venous obstructions in (recurrent) venous thromboembolism: a case-control study
 | Recurrent VTE N = 32 | No recurrent VTE N = 24 | Total N = 56 | Odds ratio (95%CI) |
---|---|---|---|---|
Extraluminal compression | 4 (12.5) | 3 (12.5) | 7 (12.5) | 1.00 (0.20–4.96) |
Extraluminal compression, per vein segment | ||||
 ICVir | 1 (3.1) | 2 (8.3) | 3 (5.6) | 0.36 (0.03–1.16) |
 CIV | 4 (12.5) | 3 (12.5) | 7 (12.5) | 1.00 (0.20–4.96) |
 EIV | 1 (3.1) | 0 (0.0) | 1 (1.8) | 2.33 (0.09–59.8) |
Post-thrombotic sequalaeb | 28 (87.5) | 18 (75.0) | 46 (82.1) | 2.33 (0.58–9.43) |
Trabeculations, per vein segment | ||||
 ICVsr | 1 (3.1) | 0 (0.0) | 1 (1.8) | 2.33 (0.09–59.8) |
 ICVir | 1 (3.1) | 1 (4.2) | 2 (3.6) | 0.74 (0.04–12.5) |
 CIV | 2 (6.3) | 3 (12.5) | 5 (8.9) | 0.47 (0.07–3.04) |
 EIV | 3 (9.4) | 3 (12.5) | 6 (10.7) | 0.72 (0.13–3.95) |
 CFV | 3 (9.4) | 4 (16.7) | 7 (12.5) | 0.52 (0.10–2.57) |
 FV | 18 (56.3) | 9 (37.5) | 27 (48.2) | 2.14 (0.73–6.32) |
 DFV | 1 (3.1) | 1 (4.2) | 2 (3.6) | 0.74 (0.04–12.5) |
 PV | 27 (79.4) | 16 (66.7) | 43 (76.8) | 2.70 (0.75–9.68) |
Venous insufficiencyc | 19 (59.4) | 10 (41.7) | 29 (51.8) | 2.05 (0.70–6.00) |
Venous insufficiency, per vein segment | ||||
 CFV | 3 (9.4) | 0 (0.0) | 3 (5.6) | 5.81 (0.29–118.1) |
 PV | 19 (59.4) | 10 (41.7) | 29 (51.8) | 2.05 (0.70–6.00) |