Table 2.

Risk factors in patients with confirmed or excluded deep vein thrombosis of lower extremities

Risk factor	Deep vein thrombosis (n = 33)	No deep vein thrombosis (n = 62)	P-value
Renal failure	14 (42.4%)	21 (33.8%)	0.411
History of VTE	9 (27.2%)	8 (12.9%)	0.082
Obesity	8 (24.2%)	7 (11.2%)	0.099
Hip fracture and surgery	5 (15.1%)	2 (3.2%)	0.047
Superficial venous insufficiency	3 (9%)	8 (12.9%)	0.742
Immobilization	3 (9%)	6 (9.6%)	0.999
Heart failure	3 (9%)	12 (19.3%)	0.191
Recent surgery	3 (9%)	5 (8%)	0.999
Cancer	2 (6%)	4 (6.4%)	0.999
Respiratory failure	2 (6%)	4 (6.4%)	0.999
Lung infection	1 (3%)	6 (9.6%)	0.415
Sepsis	1 (3%)	1 (1.6%)	0.999
Hemiplegia	1 (3%)	0	0.347
Acute pancreatitis	1 (3%)	1 (1.6%)	0.999
Cardiac catheterization	1 (3%)	0	0.347
Chronic lung disease	0	12 (19.3%)	0.007
Coronary artery disease	0	12 (19.3%)	0.007
Quadriplegia	0	2 (3.2%)	0.541
Leg fracture	0	2 (3.2%)	0.541
Intracranial bleeding	0	1 (1.6%)	0.999

Abbreviation: VTE, venous thromboembolism.