Table 1.
Demographic Data
| N=114 (%) | ||
|---|---|---|
| Average age | 62 (range: 34–92) | |
| Sex | ||
| Male | 45 | 39.5 |
| Female | 69 | 60.5 |
| Smoke history | ||
| Never smoke | 77 | 67.5 |
| Current and ex-smoker | 37 | 32.5 |
| Histology | ||
| Adenocarcinoma | 112 | 98.2 |
| Adenosquamous or NOS | 2 | 1.8 |
| Performance status | ||
| 0–1 | 81 | 71.1 |
| 2–4 | 33 | 28.9 |
| EGFR | ||
| Exon 19 | 55 | 48.2 |
| Exon 21 | 53 | 46.5 |
| Other exon (18 or 20) | 6 | 5.3 |
| Weight loss on initial diagnosis* | 38 | 33.3 |
| Post operation recurrence | 3 | 2.6 |
| Distant metastasis on initial diagnosis | 84 | 73.7 |
| Pleural metastasis on initial diagnosis | 39 | 34.2 |
| Brain metastasis | 39 | 34.2 |
Note: *5% weight loss within 3 months.
Abbreviations: EGFR, epidermal growth factor receptor; NOS, not otherwise specified.