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Table 2 The association between GSTM3 expression and clinicopathologic features in patients with ESCC

From: Low GSTM3 expression is associated with poor disease‐free survival in resected esophageal squamous cell carcinoma

Characteristic GSTM3 expression in mRNA cohort P# GSTM3 expression in protein cohort P#
Case Low level (%) High level (%) Case Low level (%) High level (%)
Gender     0.618     0.691
 Male 135 65 (48.1) 70 (51.9)   137 84 (61.3) 53 (38.7)  
 Female 49 26 (53.1) 23 (46.9)   110 71 (64.5) 39 (35.5)  
Age     1.000     0.356
 ≤ 60 104 51 (49.0) 53 (51.0)   138 83 (60.1) 55 (39.9)  
 > 60 80 40 (50.0) 40 (50.0)   109 72 (66.1) 37 (33.9)  
Location     0.543     0.567
 Upper 40 19 (47.5) 21 (52.5)   60 35 (58.3) 25 (41.7)  
 Middle 100 47 (47.0) 53 (53.0)   161 105 (65.2) 56 (34.8)  
 Lower 44 25 (56.8) 19 (43.2)   26 15 (57.7) 11 (42.3)  
Differentiation     0.024     0.004
 Grade 1 46 17 (37.0) 29 (63.0)   23 12 (52.2) 11 (47.8)  
 Grade 2 92 44 (47.8) 48 (52.2)   157 90 (57.3) 67 (42.7)  
 Grade 3 46 30 (65.2) 16 (34.8)   67 53 (79.1) 14 (20.9)  
pT category     0.084     1.000
 T1-2 44 27 (61.4) 17 (38.6)   84 53 (63.1) 31 (36.9)  
 T3-T4 140 64 (45.7) 76 (54.3)   163 102 (62.6) 61 (37.4)  
pN category     0.660     0.356
 N0 100 51 (51.0) 49 (49.0)   136 89 (65.4) 47 (34.6)  
 N1-3 84 40 (47.6) 44 (52.4)   111 66 (59.5) 45 (40.5)  
Pathological staging     0.371     0.506
 I 14 9 (64.3) 5 (35.7)   19 13 (68.4) 6 (31.6)  
 II 82 42 (51.2) 40 (48.8)   119 78 (65.5) 41 (34.5)  
 III-IV 88 40 (45.5) 48 (54.5)   109 64 (58.7) 45 (41.3)  
  1. #Chi-square test