Table 1.
Baseline patient demographics, medical history, and additional procedures
| Patient demographics | PTS subgroup N = 93 | NIVL subgroup N = 77 | All treated N = 170 |
|---|---|---|---|
| Age (years), X ± SD | 49.8 ± 15.0 | 55.0 ± 15.4 | 52.1 ± 15.3 |
| Male/Female, % / % | 45.2/54.8 | 27.3/72.7 | 37.1/62.9 |
| BMI, kg/m2 ± SD | 28.6 ± 6.4 | 29.1 ± 7.7 | 28.8 ± 7.0 |
| Race, % (n) | |||
| Caucasian | 89.2 (83) | 94.8 (73) | 91.8 (156) |
| African American | 7.7 (7) | 2.6 (2) | 5.3 (9) |
| Asian | 3.2 (3) | 1.3 (1) | 2.4 (4) |
| Medical history, % (n) | |||
| Varicose Veins | 76.3 (71) | 80.5 (2) | 78.2 (133) |
| May–Thurner Syndrome | 37.6 (35) | 87.0 (67) | 60.0 (102) |
| Deep Vein Thrombosis | 98.9 (92) | 0 (0) | 54.1 (92) |
| Cigarette Smoking | 30.1 (28) | 39.0 (30) | 34.1 (58) |
| Hypertension | 29.0 (27) | 36.4 (28) | 32.4 (55) |
| Dyslipidemia | 21.5 (20) | 35.1 (27) | 27.6 (47) |
| Respiratory Disorder | 14.0 (13) | 9.1 (7) | 11.8 (20) |
| Diabetes | 5.4 (5) | 16.9 (13) | 10.6 (18) |
| Peripheral Arterial Disease | 6.5 (6) | 15.6 (12) | 10.6 (18) |
| Gastrointestinal Disease | 11.8 (11) | 9.1 (7) | 10.6 (18) |
| Coronary Artery Disease | 6.5 (6) | 11.7 (9) | 8.8 (15) |
| Coronary Intervention | 6.5 (6) | 10.4 (8) | 8.2 (14) |
| Venous Valve Disease | 7.5 (7) | 6.5 (5) | 7.1 (12) |
| Inferior Vena Cava Filter | 10.8 (10) | 0 (0) | 5.9 (10) |
| Additional procedures1, % (n) | |||
| Previous Procedure2 | 20.4 (19) | 13.0 (10) | 17.1 (29) |
| 30-Day Planned Procedure3 | 9.7 (9) | 2.6 (2) | 6.5 (11) |
1Some patients had multiple procedures
2Procedure within 1 year of the study; most peripheral vascular interventions were for vena cava filter placement (33%), thrombectomy (16%), or venous procedures (e.g., venoplasty, ablation, or lysis)
3Planned peripheral endovascular or surgical intervention 30 days before or after the study procedure