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. 2015 Mar-Apr;41(2):288–295. doi: 10.1590/S1677-5538.IBJU.2015.02.15

Table 1. Uni- and multivariable regression models to estimate factors associated with nephrectomy.

  Nephrectomy N (%) No nephrectomy N (%) Univariable OR (95% CI) Multivariable OR (95% CI)
N 1045 460    
Gender        
   Maleb 721 (69.5) 317 (30.5)    
   Female 324(69.4) 143 (30.6) 1.00 (0.79–1.28)  
Age at diagnosis (per year increase)     0.96 (0.95–0.97) 0.96 (0.95–0.97)
Race        
Black 47(47.0) 53(53.0)    
White 924(70.9) 380(29.1) 2.74 (1.82–4.13) 3.03(1.91–4.80)
Yellow or Unknown 74(73.2) 27(26.7) 3.09 (1.71–5.58) 3.68(1.90–7.10)
Tumor size     1.0055 (1.0025-1.0086) 0.9997(0.997-1.002)
T stage        
   T1a 48(48.0) 52(52.0)    
   T1b 111(52.1) 102(47.9) 1.18 (0.73-1.9) 1.14(0.69–1.89)
   T2 175(62.1) 107(37.9) 1.77 (1.12-2.81) 1.60(0.95–2.70)
   T3a 260(86.7) 40(13.3) 7.04 (4.21-11.78) 7.63(4.32–13.47)
   T3b 363(83.3) 73(16.7) 5.39 (3.38-8.58) 5.87(3.46–9.98)
   T3c 25(73.5) 9(26.5) 3.01 (1.28-7.09) 3.10(1.24–7.75)
   T4 63(45.0) 77(55.0) 0.89 (0.53-1.48) 0.92(0.52–1.65)
N stage        
   N0 787(71.5) 314(28.5)    
   N1 156(63.2) 91(36.8) 0.68 (0.51-0.91) 0.46(0.33–0.64)
   N2 102(65.0) 55(35.0) 0.74 (0.52-1.05) 0.51(0.34–0.77)
Median household income (in tens) 2000     1(0.9999-1.0001)  
% Unemployed 2000     0.9998 (0.9993,1.0003)  

OR = odds ratio; CI = confidential interval