Table 1.
Clinicopathological characteristics of 349 primary non‐small cell lung carcinoma patients
| Parameters | n | % |
|---|---|---|
| Age (years) | ||
| Mean | 65 (range 29–85) | |
| Sex | ||
| Male | 226 | 65 |
| Female | 123 | 35 |
| Histology | ||
| Adenocarcinoma | 242 | 69 |
| Squamous cell carcinoma | 89 | 26 |
| Large cell carcinoma | 7 | 2 |
| Adenosquamous carcinoma | 3 | 0.9 |
| Pleomorphic carcinoma | 1 | 0.2 |
| Mucoepidermoid carcinoma | 1 | 0.2 |
| Unclassified non‐small cell carcinoma | 6 | 1.7 |
| Smoking history | ||
| Never or light smokers† | 131 | 38 |
| Heavy smokers | 201 | 57 |
| Undetermined | 17 | 5 |
| P‐stage | ||
| I or II | 226 | 65 |
| III or IV | 97 | 28 |
| Undetermined | 26 | 7 |
†
Pack‐year < 20.