A prediction nomogram for deep venous thrombosis risk in patients undergoing primary total hip and knee arthroplasty: a retrospective study

Table 1 Univariate logstic regression of development dataset.

Variable	OR	OR 95% CI	p-value
Surgical site(Knee)	3.354	1.511–7.446	0.003*
Gender(Female)	0.443	0.164–1.195	0.108
Age
41–60	0.661	0.12–3.652	0.635
61–74	1.847	0.393–8.694	0.437
≥ 75	0.591	0.088–3.954	0.588
BMI ≥ 25	2.756	1.244–6.106	0.013*
Malignancy	2.057	0.52–8.136	0.304
Varicose vein	-	-	0.999
Positive blood test	-	-	0.999
History of DVT	-	-	0.999
Smoking	0.685	0.15–3.127	0.625
Diabetes need insulin	-	-	0.999
HRT	0.208	0.027–1.589	0.130
Frature of the Hip	1.266	0.401–3.996	0.687
Bed for 72h	1.572	0.656–3.767	0.310
Transfusion	0.791	0.370–1.690	0.545
CVC	0.874	0.102–7.472	0.902
Leg swelling	4.021	1.961–8.246	< 0.0001*
COPD	5.378	0.329–87.91	0.238
TAT	1.065	1.041–1.089	< 0.0001*
D-dimer	1.041	1.016	< 0.001*

ISSN: 1477-9560