Table 1.
Clinical characteristics of 50 advanced NSCLC cases and the detection of EGFR mutations in primary tumors and metastases
| No. cases | Mutation rates of primary tumor (%) | Mutation rates of metastases (%) | |
|---|---|---|---|
| Age |
|
|
|
| >60 |
38 |
100 |
100 |
| ≤60 |
12 |
100 |
75 |
| Gender |
|
|
|
| Male |
11 |
100 |
72.7 |
| Female |
39 |
100 |
100 |
| Type |
|
|
|
| Adenocarcinoma |
49 |
100 |
95.9 |
| Squamous cell carcinoma |
1 |
100 |
0 |
| Stage |
|
|
|
| IIIB |
28 |
100 |
89.3 |
| IV |
22 |
100 |
100 |
| Smoking status |
|
|
|
| Smoker |
10 |
100 |
80 |
| Non-smoker | 40 | 100 | 97.5 |