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Table 1 Univariate Cox Regression analysis on factors for OSCC recurrence

From: Overexpression of proteasomal activator PA28α serves as a prognostic factor in oral squamous cell carcinoma

Variables β SE Wald χ 2 P Value RR (95 % CI)a
Alpha domain 0.543 0.240 5.111 0.024 1.722 (1.075-2.758)
Alpha intensity 0.868 0.245 12.864 0.000 2.382 (1.472-3.854)
Alpha (D×I) 0.256 0.064 15.889 0.000 1.292 (1.139-1.466)
Alpha (categorical) 1.298 0.307 17.923 0.000 3.664 (2.008-6.683)
Smoking 1.210 0.326 13.812 0.000 3.354 (1.772-6.349)
Current smoking 0.940 0.362 6.754 0.009 2.560 (1.260-5.200)
Smoking dose 0.001 0.000 4.943 0.026 1.001 (1.000-1.002)
Differentiation (3 vs. 1) 1.567 0.367 18.230 0.000 4.792 (2.334-9.837)
T-stage (3 vs. 1) 1.848 0.551 11.250 0.001 6.349 (2.156-18.698)
Lymphatic metastasis 0.704 0.302 5.420 0.020 2.021 (1.118-3.656)
Clinical stage (3 vs. 1) 1.737 0.746 5.422 0.020 5.679 (1.316-24.501)
Clinical stage (4 vs. 1) 2.230 0.762 8.570 0.003 9.300 (2.090-41.387)
  1. aRR: relative risk, CI: confidence interval