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Patient characteristics
| Clinic pathological features | Value |
|---|---|
| Number of patients |
175 |
| Average age(y) |
59.8(30-85) |
| Ratio of men to women |
125:50 |
| Histopathology |
|
| Adenocarcinoma |
173(98.9%) |
| Well differentiated |
6(3.4%) |
| Moderately differentiated |
91(52%) |
| Poorly differentiated |
76(43.5%) |
| Small cell carcinoma |
2(1.1%) |
| lymph node metastasis |
|
| Positive |
134(76.6%) |
| Negative | 41(23.4%) |
