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Table 2 Associations between EGFR mutation status and the clinicopathologic features of patients with NSCLC

From: Clinicopathologic characteristics and therapeutic responses of Chinese patients with non-small cell lung cancer who harbor an anaplastic lymphoma kinase rearrangement

Characteristic EGFR mutation [cases (%)] P
Negative Positive
Total 328 (67.4) 159 (32.6)  
Age
 ≤58 years 187 (57.0) 74 (46.5) 0.030
 >58 years 141 (43.0) 85 (53.5)  
Sex
 Male 231 (70.4) 72 (45.3) <0.001
 Female 97 (29.6) 87 (54.7)  
Histological type
 Adenocarcinoma 226 (68.9) 156 (98.1) <0.001
 Others 102 (31.1) 3 (1.9)  
Differentiation
 Well 118 (36.0) 88 (55.3) <0.001
 Poor 210 (64.0) 71 (44.7)  
Clinical stage
 I + II 153 (46.6) 73 (45.9) 0.879
 III + IV 175 (53.4) 86 (54.1)  
Smoking history
 Non-smoker 130 (39.6) 109 (68.6) <0.001
 Smoker 198 (60.4) 50 (31.4)  
  1. All values are presented as number of patients followed by percentages in the parentheses. Other footnotes as in Table 1.