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Table 1 Clinical data of 112 pN0 ESCC patients undergoing radical esophagectomy with lymphadenectomy

From: Clinical study on postoperative recurrence in patients with pN0 esophageal squamous cell carcinoma

Variables Recurrence Statistic pValue
Positive Negtive
No. of patients 45 67 - -
Gender (M/F) 39/6 53/14 χ 2 = 0.497 0.173
Age (years) 60 ± 5 61 ± 7 t = 4.877 0.782
Tumor location    χ 2 = 7.845 0.038
&Upper 11 10   
&Middle 29 35   
&Lower 5 22   
Grade of differentiation    χ 2 = 6.380 0.043
&Well (G1) 4 12   
&Moderately (G2) 9 22   
&Poorly (G3) 32 33   
pT status    χ 2 = 18.837 0.006
&T1 0 19   
&T2 6 19   
&T3 35 26   
&T4a 4 3   
Pathological staging    χ 2 = 7.845 0.024
&Stage I 1 20   
&Stage II 9 18   
&Stage III 31 26   
&Stage IIIA 4 3   
Lymphadenectomy    χ 2 = 5.226 0.119
&Two field 39 58   
&Three field 6 9   
Intralmural metastasis    χ 2 = 3.593 0.336
&Positive 4 0   
&Negtive 41 67