Table 2.

Univariate and multivariate associations of preoperative clinical and radiographic features predicting the need for IVC resection

Feature	Univariable analysis		Multivariable analysis
	Odds ratio (95% CI)	P value	Odds ratio (95% CI)	P value
BMI, kg/m2	1.22 (1.01–1.39)	0.003	1.18 (1.03–1.35)	0.019
Mayo classification	1.57 (1.03–2.41)	0.030	1.14 (0.68–1.90)	0.623
Tumor diameter, cm	0.84 (0.72–0.97)	0.022	0.86 (0.72–1.01)	0.068
TT width, cm	1.08 (1.01–1.17)	0.037	1.05 (0.96–1.14)	0.285
IVC occlusion
No	Reference	0.038	Reference	0.403
Yes	2.67 (1.06–6.73)		1.58 (0.54–4.62)

TT tumor thrombus