Table 3 Predictors of deep vein thrombosis identified by uni- and multi-variate Cox regression analysis

Age, per year

1.032 (1.010-1.054)

0.004

1.031 (1.009-1.053)

0.004

Male gender

1.361 (0.812-2.282)

0.242

1.577 (0.934-2.661)

0.088

Hypertension

1.611 (0.942-2.755)

0.082

1.007 (0.541-1.874)

0.983

CAD

2.956 (1.570-5.564)

0.001

2.208 (1.026-4.751)

0.043

Hyperlipidemia

1.290 (0.635-2.621)

0.481

0.921 (0.407-2.084)

0.844

Cancer

2.694 (1.159-6.263)

0.021

1.598 (0.657-3.888)

0.301

Fracture

2.495 (1.185-5.251)

0.016

1.918 (0.899-4.094)

0.092

Major surgery

4.055 (2.057-7.996)

<0.001

3.161 (1.535-6.510)

0.002

Aspirin

1.315 (0.598-2.891)

0.496

0.703 (0.291-1.701)

0.435

Dipyridamole

1.014 (0.368-2.797)

0.978

0.728 (0.257-2.063)

0.550

Statin

1.667 (0.604-4.596)

0.324

1.553 (0.499-4.836)

0.448

Metformin

0.395 (0.223-0.700)

0.001

0.427 (0.240.0.758)

0.004