Deep Vein Thrombosis in the Uninjured Limb in Patients with Lower Extremity Fractures: A Retrospective Study

Table 3

Patient characteristics according to one month after operation ultrasound.

	No thrombosis	Thrombosis	Overall
Number	401	93	494
Age				0.001
Gender
Female	205	61	266	0.012
Male	196	32	228
Types of fracture
Above the knee joint fracture	221	69	290	0.003
Around the knee joint fracture	88	13	101
Below the knee joint fracture	92	11	103
Medical morbidity
Hypertension (%)	64 (15.96)	24 (25.81)	88	0.025
Diabetes (%)	26 (6.48)	11 (11.83)	37	0.078
Coronary heart disease (%)	74 (18.45)	31 (33.33)	105	0.002
Days between fracture and operation (days)				0.796
Days between operation and discharge (days)				0.902
ASA classification
1	80	8	88	0.021
2	247	61	308
3	74	24	98
Duration of operation (mins)				0.441
Blood loss (mL)				0.971
Liquid transfusion (mL)				0.192
Serum markers
D-dimer at admission (mg/L)				0.619
D-dimer at preoperation (mg/L)				0.975
D-dimer at one day after operation (mg/L)				0.002
D-dimer at one month after operation (mg/L)				<0.001

ASA: American Society of Anesthesiologists.