Characteristics | Patients (n = 322) | Controls (n = 384) |
---|---|---|
Age, years | 59.00 ± 9.83 | 51.16 ± 11.50 |
≤ 50 years | 58 (18.01%) | 156 (40.62%) |
> 50 years | 264 (91.99%) | 228 (59.38%) |
Gender | ||
Male | 245 (76.1%) | 278 (72.4%) |
Female | 77 (23.9%) | 106 (27.6%) |
Histology | ||
Adenocarcinoma | 150 | |
Squamous cell | 98 | |
small cell carcinoma | 74 | |
Stage | ||
I-II | 95 | |
III-IV | 213 | |
Missing | 34 | |
Lymphatic metastasis | ||
Yes | 193 | |
No | 127 |