Table 3. Predictors of post-operative upstaging to pT3 on univariable and multivariable logistic regression modeling (LRM).

Variables with p ≤ 0.1 on univariable LRM were applied to multivariable LRM. OR = odds radio; CI = confidence interval

	Univariable LRM			Multivariable LRM
Characteristic	OR	95% CI	p-value	OR	95% CI*	p-value
Mean age at nephrectomy	1.03	1.02 - 1.05	< 0.001	1.02	1.00 – 1.04	0.016
Male gender	1.73	1.21 - 2.53	0.004	2.31	1.44 – 3.78	< 0.001
R.E.N.A.L nephrometry score	1.38	1.22 - 1.55	< 0.001	1.17	1.02 – 1.35	0.022
Adverse radiologic features	5.32	3.82 - 7.42	< 0.001	1.58	1.58 – 4.3	< 0.001
Tumor size (max diameter) on pre-op imaging	1.95	1.56 – 2.44	< 0.001	2.6	1.17 – 2.16	0.003
BMI	1.02	0.99 – 1.05	0.2	Excluded from multivariable model
Charlson comorbidity Index	1.09	0.97 – 1.21	0.13	Excluded from multivariable model