Table 3.

Results of the multivariable logistic regression analysis for VTE as the dependent variable, with ROTEM parameters, age, sex, BMI, Charlson comorbidity index, smoking status, surgery (peritrochanteric vs femoral neck fracture), and chronic anticoagulant use as independent variables

	VTE
Variables	OR	95% CI	p value
Preoperative EXTEM CFT	0.79	0.71-0.89	< 0.001
Preoperative EXTEM MCF	1.24	1.10-1.40	< 0.001
Preoperative EXTEM A10	1.18	1.03-1.35	0.01
Preoperative INTEM CFT	0.69	0.55-0.82	< 0.001
Preoperative INTEM MCF	1.18	1.04-1.34	0.009
Postoperative INTEM CFT	0.86	0.78-0.94	0.002
Postoperative INTEM MCF	1.29	1.11-1.50	0.001
Postoperative INTEM A10	1.25	1.08-1.45	0.002

CFT = clot formation time; A10 = clot amplitude at 10 minutes; MCF = maximum clot firmness.