Superficial vein thrombosis as a risk factor for various types of venous thrombosis
| . | Patients, n (%) . | Controls, n (%) . | Adjusted odds ratio (95% CI)* . | ||||||
|---|---|---|---|---|---|---|---|---|---|
| All . | DVT only . | PE and DVT . | PE only . | Overall . | DVT only . | PE and DVT . | PE only . | ||
| No SVT | 3876 (90) | 2211 (89) | 359 (89) | 1306 (93) | 5644 (98) | Reference | Reference | Reference | Reference |
| SVT | 414 (10) | 265 (11) | 45 (11) | 104 (7) | 110 (2) | 5.4 (4.4-6.8) | 6.3 (5.0-8.0) | 6.5 (4.5-9.4) | 3.9 (3.0-5.1) |
| Adjusted for FVL | 4.6 (3.7-5.8) | 5.3 (4.1-6.8) | 5.6 (3.8-8.3) | 3.5 (2.6-4.7) | |||||
| Adjusted for FVL, FII, ABO | 4.4 (3.5-5.5) | 5.0 (3.9-6.4) | 5.5 (3.7-8.3) | 3.4 (2.5-4.5) | |||||
| . | Patients, n (%) . | Controls, n (%) . | Adjusted odds ratio (95% CI)* . | ||||||
|---|---|---|---|---|---|---|---|---|---|
| All . | DVT only . | PE and DVT . | PE only . | Overall . | DVT only . | PE and DVT . | PE only . | ||
| No SVT | 3876 (90) | 2211 (89) | 359 (89) | 1306 (93) | 5644 (98) | Reference | Reference | Reference | Reference |
| SVT | 414 (10) | 265 (11) | 45 (11) | 104 (7) | 110 (2) | 5.4 (4.4-6.8) | 6.3 (5.0-8.0) | 6.5 (4.5-9.4) | 3.9 (3.0-5.1) |
| Adjusted for FVL | 4.6 (3.7-5.8) | 5.3 (4.1-6.8) | 5.6 (3.8-8.3) | 3.5 (2.6-4.7) | |||||
| Adjusted for FVL, FII, ABO | 4.4 (3.5-5.5) | 5.0 (3.9-6.4) | 5.5 (3.7-8.3) | 3.4 (2.5-4.5) | |||||
ABO indicates ABO blood group; CI, confidence interval; DVT, deep-vein thrombosis; FII, prothrombin G20210A; FVL, factor V Leiden; PE, pulmonary embolism; and SVT, superficial vein thrombosis.
Adjusted for age and sex.