Table 1 Clinicopathological features of all subjects
Clinic features | Discovery set | Validation set_1 | Validation set_2 | |||
|---|---|---|---|---|---|---|
Control (n = 30) | ESCC (n = 30) | Control (n = 30) | ESCC (n = 53) | CT (n = 29) | ANT(n = 29) | |
Age (mean±SD) | 60.1 ± 15.1 | 64.6 ± 6.9 | 52.4 ± 10.5 | 66.8 ± 8.6 | 63.9±8.8 | |
Gender | ||||||
 Male | 16 | 19 | 19 | 35 | 23 | |
 Female | 14 | 11 | 11 | 18 | 6 | |
T stage | ||||||
 T1 |  | 1 |  | 6 |  | |
 T2 |  | 17 |  | 22 | 10 | |
 T3 |  | 7 |  | 16 | 18 | |
 T4 |  | 5 |  | 9 | 1 | |
N stage | ||||||
 N0 |  | 8 |  | 21 | 13 | |
 N1 |  | 12 |  | 18 | 8 | |
 N2 |  | 6 |  | 8 | 6 | |
 N3 |  | 4 |  | 6 | 2 | |
M stage | ||||||
 M0 |  | 26 |  | 48 | 25 | |
 M1 |  | 4 |  | 5 | 4 | |
Overall stage | ||||||
 I |  | 2 |  | 8 |  | |
 II |  | 16 |  | 28 | 16 | |
 III |  | 6 |  | 12 | 10 | |
 IV |  | 6 |  | 5 | 3 | |