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Table 1 Baseline characteristics for the whole group

From: Tumor location as an indication for adjuvant radiotherapy in pT3N0 rectal cancer after surgery

Variable Adjuvant chemotherapy group (n = 150) Adjuvant chemo-radiotherapy group (n = 115) P value
Age, year    0.041
 median 57 55  
Gender    0.311
 male 95 65  
 female 55 50  
Hb g/L    0.025
  < 128 67 68  
  ≥ 128 83 47  
CEA, ug/mL    0.083
  < 5.00 75 70  
  ≥ 5.00 75 45  
Tumor Location from AV, cm    0.213
  < 7.0 63 58  
  ≥ 7.0 87 57  
Tumor grade    0.421
 G1 11 5  
 G2 123 101  
 G3 16 9  
Type of surgery    0.804
 Mile’s 30 23  
 Dixon 117 88  
 Hartmann 3 4  
Tumor volume, cm3    0.083
  < 19 68 65  
  ≥ 19 82 50  
Retrieved lymph nodes    0.174
  < 14 69 63  
  ≥ 14 81 52  
Lymph vascular invasion    0.808
 yes 11 7  
 no 139 108  
Duration of adjuvant therapy, months    
 median 5.3 (4.5–6.2) 5.0 (4.4–6.1) 0.485
Follow-up, months    0.872
 median 57.1 56.4  
  1. Abbreviations: adjuvant-chemo adjuvant chemotherapy, Hb hemoglobin, CEA carcinoembryonic antigen, AV anal verge, tumor grade: G1 well differentiated, G2 moderately differentiated, G3 poorly differentiated