表 1.
所有患者的临床病理特征（n=27）
Clinicopathologic characteristics of all patients (n=27)
| Characteristics | n | % |
| PD-1: programmed death 1; EGFR: epidermal growth factor receptor. | ||
| Age (yr) | ||
| ≤65 | 17 | 63.0 |
| > 65 | 10 | 37.0 |
| Gender | ||
| Male | 12 | 44.4 |
| Female | 15 | 55.6 |
| Smoking | ||
| Yes | 8 | 19.6 |
| No | 19 | 70.4 |
| EGFR mutation | ||
| 19del | 6 | 22.2 |
| L858R | 8 | 29.6 |
| 20Ins | 1 | 3.7 |
| G719X | 4 | 14.9 |
| Combined with T790M | 8 | 29.6 |
| Therapy lines | ||
| The second lines | 2 | 7.4 |
| The third lines | 4 | 14.8 |
| More than the third lines | 21 | 77.8 |
| PD-1 monoclonal antibody | ||
| Toripalimab | 11 | 40.8 |
| Sintilimab | 8 | 29.6 |
| Camrelizumab | 8 | 29.6 |