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Table 4 Multivariate 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)
Alpha (2 vs. 1) 0.784 0.413 3.603 0.058 2.190 (0.975-4.918)
Differentiation (2 vs. 1) 1.036 0.422 6.034 0.014 2.819 (1.233-6.444)
Differentiation (3 vs. 1) 0.826 0.475 3.025 0.082 2.285 (0.900-5.798)
T-stage (3 vs. 1) 1.969 1.115 2.909 0.088 7.164 (0.745-68.847)
Lymphatic metastasis 1.686 0.591 8.130 0.004 5.397 (1.694-17.194)
Chemotherapy (no vs. yes) 1.507 0.412 13.347 0.000 4.512 (2.010-10.124)