Table 4.

Multivariate analysis of risk factors associated with DVT, with inclusion or exclusion of open fracture

Multivariate analysis with open fracture included			Sensitivity analysis with exclusion of open fracture
Variables	OR and 95% CI	P	Variables	OR and 95% CI	P
Open fracture (vs close)	2.30 (1.30–4.07)	0.004	Gender (male vs female)	1.71 (1.17–2.49)	0.006
D-dimer (> 0.55 mg/L)	2.20 (1.47–3.28)	< 0.001	D-dimer (> 0.55 mg/L)	2.36 (1.59–3.50)	< 0.001
Neutrophil count (> 5.02 × 109/L)	1.75 (1.13–1.71)	0.012	Neutrophil count (> 5.02 × 109/L)	1.59 (1.05–2.41)	0.030
Platelet count (> 278 × 109/L)	2.42 (1.71–3.42)	< 0.001	Platelet count (> 278 × 109/L)	2.66 (1.88–3.75)	< 0.001
			Hypertension	1.71 (1.13–2.58)	0.011