Table 1 Clinicopathological characteristics of patients for clinical validation cohorts.
Clinical and pathological variables | Clinical validation cohorts (N = 56) |
|---|---|
Age (years) | |
 <60 | 29 |
 ≥60 | 27 |
Gender | |
 Male | 54 |
 Female | 2 |
Smoking status | |
 Smoker | 48 |
 Non-smoker | 8 |
Clinical stage | |
 I-II | 28 |
 III-IV | 28 |
Differentiation | |
 Well | 8 |
 Moderate | 27 |
 Poor | 21 |
Lymph node metastasis | |
 Yes | 21 |
 No | 35 |
