Table 2.

Multivariate logistic regression for risk of deep vein thrombosis, pulmonary embolism, and all-cause venous thromboembolic disease among primary total knee arthroplasty, unicompartmental knee arthroplasty, and revision total knee arthroplasty

	Deep vein thrombosis			Pulmonary embolism			Venous thromboembolic disease
	%	Odds ratio (95% CI)	P value	%	Odds ratio (95% CI)	P value	%	Odds ratio (95% CI)	P value
Primary total knee arthroplasty (N = 191,810)	0.9	Ref.a	–	0.6	Ref.	–	1.4	Ref.	–
Unicompartmental knee arthroplasty (N = 9294)	0.4	0.44 (0.31–0.61)	< 0.001a	0.2	0.42 (0.28–0.65)	< 0.001	0.6	0.42 (0.32–0.55)	< 0.001
Revision total knee arthroplasty (N = 12,130)	0.9	0.91 (0.74–1.12)	0.39	0.4	0.62 (0.47–0.83)	0.002	1.2	0.82 (0.70–0.98)	0.029

Bold type signifies statistical significance, P < 0.05

^aRef. is the baseline reference procedure to which all other procedures are compared