Table VI.

Independent factors associated with venous thromboembolism from a multivariable regression model

Factor	OR	95% CI	P
Age	1.05	1.02–1.06	<.001
BMI	1.03	1.004–1.05	.016
Anemia	2.4	1.2–4.8	.011
SSI	2.52	1.23–5.17	.011
Wound class (dirty/infected relative to clean/contaminated)	3.4	1.6–7.3	.001
Infection bundle	3.6	1.9–6.7	<.001
(-) h/o angina	0.18	.05–.68	.011
(-) h/o weight loss	0.33	.13–.86	.024
Combined prophylaxis	.48	.27–.89	.02

h/o, history of; infection bundle, sepsis, sepsis shock, organ space infection, pneumonia; SSI, surgical site infection.