Table 3.

Multivariable logistic regression analysis demonstrating associations between tumor anatomic characteristics and the probability of being placed on AS among patients with T1a disease.

Variable	OR	95% CI	p-value
Age	1.1	1.06–1.10	<0.001
Largest tumor size	0.70	0.55–0.88	0.002
Charlson Comorbidity Index	1.68	1.48–1.91	<0.001
Nephrometry Score	1.8	1.3–2.6	<0.001
(N)earness (1 vs. 3)	1.9	1.1–3.1	0.017
(N)earness (2 vs. 3)	1.8	0.96–3.3	0.050
(L)ocation (1 vs. 3)	1.1	0.61–1.9	0.002
(L)ocation (2 vs. 3)	0.97	0.54–1.7	0.922
Non-hilar	2.0	0.7–5.9	0.192
Solitary Kidney	1.7	0.67–4.6	0.259
Multifocal disease	2.4	1.2–4.9	0.016

Controlling for gender, race, Eastern Cooperative Oncology Group Score, tumor laterality, endo/exophycity, size, anterior/posterior, and location relative to polar line.