Table 1. The characteristics of the patients.
Malignant group | Benign group | |
---|---|---|
Age, years | 60.2 ± 1.3 | 56.9 ± 1.4 |
Gender | ||
Male | 38 | 17 |
Female | 10 | 22 |
Smoking status | ||
Smokers | 25 | 14 |
Non-smokers | 23 | 25 |
Pack/years | 60.1 ± 8.0 | 38.9 ± 5.9 |
Histological type | ||
Squamous cell carcinoma | 19 | |
Adenocarcinoma | 15 | |
Small-cell lung cancer | 11 | |
Others | 3 |