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Table 7 Characteristics of the ER-CRT and the dCRT groups

From: Endoscopic resection as an independent predictive factor of local control in patients with T1bN0M0 esophageal squamous cell carcinoma treated with chemoradiotherapy: a retrospective study

Characteristic ER-CRT (n = 63) dCRT (n = 28) p value
Age, years
 < 70 35 13 0.421
 ≥ 70 28 15  
Performance status
 0 60 26 0.641
 ≥ 1 3 2  
Tumor length
 < 3 cm 34 12 0.328
 ≥ 3 cm 29 16  
Circumference of tumor
 < 3/4 54 19 0.048*
 ≥ 3/4 9 9  
Multiple lesion
 No 56 21 0.09
 Yes 7 7  
RT field
 IFI 7 6 0.194
 ENI 56 22  
Radiation dose
 < 50 Gy 22 1 0.001*
 ≥ 50 Gy 41 27  
  1. ER-CRT combined endoscopic resection and chemoradiotherapy, dCRT definitive chemoradiotherapy, RT radiotherapy, IFI involved field irradiation, ENI elective nodal irradiation
  2. *p < 0.05