Clinical Study
The Frequency of Epidermal Growth Factor Receptor Mutation of Nonsmall Cell Lung Cancer according to the Underlying Pulmonary Diseases
Table 1
Patient characteristics NSCLC: nonsmall cell lung cancer: LCNEC; large cell neuroendocrine carcinoma.
| Total number of patients | 198 |
| Age (median, range) | 68, 28–92 | Gender | | Female | 86 | Male | 112 | Smoking-status | | Never | 74 | Ex/Current | 124 | Histology | | Adenocarcinoma | 169 | Squamous cell carcinoma | 9 | Other NSCLC | 15 | LCNEC | 4 | Clinical stage of NSCLC | | IA | 29 | IB | 14 | IIA | 2 | IIB | 6 | IIIA | 12 | IIIB | 30 | IV | 105 | Chest CT | | Normal | 122 | Emphysema | 59 | Fibrosis | 17 | EGFR mutation | | Wild type | 147 | Ex18 G718S | 1 | Ex19 del | 34 | Ex21 L858R | 15 | EX19 del + Ex21 L858R | 1 | Ex 19del + T790M | 1 |
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