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. Author manuscript; available in PMC: 2015 Nov 1.
Published in final edited form as: Urol Oncol. 2014 Jun 7;32(8):1267–1271. doi: 10.1016/j.urolonc.2014.05.003

Table 2.

Multivariable logistic regression analysis demonstrating associations between tumor anatomic characteristics and the probability of being placed on AS.

Variable OR 95% CI p-value
Age 1.09 1.07–1.10 <0.001
Largest tumor size 0.77 0.69–0.85 <0.001
Charlson Comorbidity Index 1.66 1.5–1.84 <0.001
Nephrometry Score 1.85 1.37–2.5 <0.001
(R)adius (1 vs. 3) 5.2 1.78–15.2 0.003
(R)adius (2 vs. 3) 3.27 1.15–9.26 0.026
(N)earness (1 vs. 3) 2.3 1.5–3.6 <0.001
(N)earness (2 vs. 3) 2.5 1.5–4.2 <0.001
(L)ocation (1 vs. 3) 1.4 0.84–2.2 <0.001
(L)ocation (2 vs. 3) 1.3 0.8–2.1 0.274
Non-hilar 2.7 1.2–5.8 0.015
Solitary Kidney 1.4 0.6–3.4 0.394
Multifocal Tumor 1.8 0.96–3.4 0.068

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