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Table 3 Univariate survival analysis of the patients with stage III colorectal cancer

From: Lymph-node ratio is an independent prognostic factor in patients with stage III colorectal cancer: a retrospective study from the Middle East

Characteristics N 1 year survival (%) 5 year survival (%) 10 year survival (%) P value
Age      
 <50 56 95.6 ± 2.9 79.1 ± 6.7 70.3 ± 10.2  
 50 to 60 33 100 64.3 ± 13.2 42.9 ± 19.5  
 61 to 70 35 90 ± 5.5 70.1 ± 11.2 19.5 ± 16.6  
 > 71 39 80.5 ± 7.4 68.5 ± 10.1 68.5 ± 10.1 0.25
LNR      
 0 to 0.4 116 94.1 ± 2.3 77.3 ± 5.8 60.6 ± 9.9  
 > 0.4 41 86.2 ± 6.6 40.6 ± 13.4 0 <0.01
+LN      
 1 to 3 95 94.3 ± 2.5 76.3 ± 6 58.4 ± 10.5  
 > 4 63 89.2 ± 4.7 51.1 ± 13.1 19.2 ± 15.5 <0.05
Stage III      
 IIIA 13 91 ± 8.7 75.8 ± 15.6 75.8 ± 15.6  
 IIIB 108 94 ± 2.4 77.1 ± 5.7 56 ± 10.4  
 IIIC 42 84.7 ± 7.2 22 ± 17.4 0 0.01
Adjuvant chemotherapy      
 No 42 78.1 ± 6.9 65.6 ± 10.4 43.5 ± 14.4  
 Yes 81 97.3 ± 1.9 68.2 ± 7.3 42.2 ± 18.1 0.16
Gender      
 Female 85 94.4 ± 2.8 66.1 ± 7.9 49.6 ± 11.7  
 Male 78 89.7 ± 3.7 73.3 ± 7.8 44 ± 15.2 0.10
LN resected      
 0 – 11 37 90.9 ± 5 59.9 ± 10.4 59.9 ± 10.4  
 ≥ 12 123 92.1 ± 2.7 71.7 ± 6.8 40.9 ± 12.3 0.401
Grade      
 Well-differentiated 6 83.3 ± 15.2 41.7 ± 30.4 –––  
 Moderately differentiated 92 93.6 ± 2.8 68.9 ± 7.5 51.9 ± 10.5  
 Poorly differentiated 52 90.9 ± 4.4 67 ± 9.9 25.1 ± 19.6 0.61
Recurrence      
 No 67 83.9 ± 4.7 64.9 ± 6.9 50.5 ± 10.6  
 Yes 30 96.6 ± 3.4 64.4 ± 13.1 32.2 ± 17.4 0.41