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Table 5 Multivariate analysis for disease-specific survival rate

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

Variables HR (95% CI) p value
Age, years
 < 70 1.0 0.179
 ≥ 70 2.42 (0.67–8.82)  
Performance status
 0 1.0 0.140
 ≥ 1 3.06 (0.69–13.58)  
Tumor length
 < 3 cm 1.0 0.337
 ≥ 3 cm 1.78 (0.50–6.36)  
Endoscopic resection
 No 1.0 0.509
 Yes 0.65 (0.18–2.32)  
RT field
 IFI 1.0 0.125
 ENI 0.37 (0.10–1.32)  
  1. HR hazard ratio, CI confidence interval, RT radiotherapy, IFI involved field irradiation, ENI elective nodal irradiation