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Table 1 Clinical information of esophageal cancer patients and normal mucosae

From: 1H-NMR based metabonomic profiling of human esophageal cancer tissue

Clinical features Esophageal cancer Normal control
Number 89 26
Sex   
 Male 82 22
 Female 7 4
Age at diagnosis   
 Median(years) 61 59.5
 Range 39-79 43-70
Histology   
 ESCC 85  
 Adenocarcinoma 4  
Pathologic grade   
 PD 22  
 MD 62  
 HD 5  
Disease stage   
 I 0  
 II 28  
 III 45  
 IV 16  
Lymph node metastasis   
 NO 34  
 N1 55  
  1. MD: poorly differentiated; PD: moderately differentiated; HD: highly differentiated.