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Table 4 Predominant histologic subtypes and their correlation with epidermal growth factor receptor mutation (EGFR) in 102 patients

From: Correlation of survival and EGFR mutation with predominant histologic subtype according to the new lung adenocarcinoma classification in stage IB patients

  EGFR mutation number (n = 39) Wild-type number (n = 63) P
Lepidic predominant    0.29
Yes 8 (20.5%) 8 (12.7%)  
No 31 (79.5%) 55 (87.3%)  
Acinar predominant 0.27
Yes 9 (23.1%) 21 (33.3%)  
No 30 (76.9%) 42 (66.7%)  
Papillary predominant 0.57
Yes 8 (20.5%) 16 (25.4%)  
No 31 (79.5%) 47 (74.6%)  
Micropapillary predominant    0.0026
Yes 12 (30.7%) 5 (7.9%)  
No 27 (69.3%) 58 (92.1%)  
Solid predominant    0.0508
Yes 1 (2.6%) 11 (17.5%)  
No 38 (97.4%) 52 (82.5%)  
Variants of invasive adenocarcinoma    0.69
Yes 0 (0.0%) 2 (3.2%)  
No 39 (100%) 61 (96.8%)