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Table 3 Univariate and multivariate predictors of overall survival (data late than 2004)

From: Impact on survival of the number of lymph nodes resected in patients with lymph node-negative gastric cancer

  Univariate analysis Multivariate analysis
  P value P value Hazard ratio
Age (years) <0.001 <0.001 2.194 (1.529–3.148)
 ≤65    
 >65    
Gender 0.404   
 Male    
 Female    
Race 0.01 0.724 0.981 (0.881–1.092)
 White    
 Black    
 Indigenous Westerner    
 East Asian    
 Others    
Location 0.74   
 Upper    
 Middle    
 Lower    
 Overlapping    
Tumor size (cm) <0.001 0.896 1.000 (0.994–1.007)
 Diameter ≤1    
 1< Diameter ≤2    
 2< Diameter ≤3    
 3< Diameter ≤4    
 4< Diameter ≤5    
 Diameter >5    
Depth of invasion <0.001 <0.001 1.684 (1.463–1.937)
 T0 and T1    
 T2    
 T3    
 T4    
Grade 0.654   
 Well differentiated    
 Moderately differentiated    
 Poorly differentiated    
 Undifferentiation    
Lymph node-negative group 0.006 <0.001 0.773 (0.674–0.886)
 LNN 1    
 LNN 2    
 LNN 3    
 LNN 4    
  1. Only those patients who are diagnosed late than 2004 in the database can get enough details to make an accurate T stage according to the AJCC 7th edition