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Table 4 Multivariate analysis for predictors of DFS based on the Cox proportional hazards regression model

From: Being 40 or younger is an independent risk factor for relapse in operable breast cancer patients: The Saudi Arabia experience

Variables HR 95% CI P-value Overall P-value
Age     
   ≤ 40 1.51 1.03 – 2.23 0.0352  
   > 40 1  
Node Status    < 0.0001  
   Positive 2.24 1.53 – 3.29   
   Negative 1   
Tumor Size     0.0170
   ≤ 2 1 -  
   3 – 5 1.28 0.85 – 1.92 0.2440  
   > 5 2.23 1.20 – 4.36 0.0118  
Stage     0.0002
   I 0.55 0.35 – 0.86 0.0093  
   II 0.44 0.22 – 0.87 0.0195  
   III 1 -- -  
Grade     0.0078
   I 1 -- --  
   II 0.95 0.55 – 1.64 0.8550  
   III 1.21 0.69 – 2.13 0.4978  
Lymph-Vascular Invasion     
   Both Positive 1.11 0.78 – 1.58 0.5708  
   Both Negative 1 -- --  
Hormonal Receptor Status     0.0027
   ER+ PR+ 1 -- --  
   ER- PR- 1.21 0.79 – 1.83 0.3786  
   ER+ PR- 1.17 0.60 – 2.29 0.6390  
   ER- PR+ 1.79 1.11 – 2.89 0.0179  
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