Table 2. The summary information of patients with EC.
| Characteristic | Patients, n (%) |
|---|---|
| Age (years) | |
| ≤65 | 98 (62.03) |
| >65 | 60 (37.97) |
| Gender | |
| Male | 135 (85.44) |
| Female | 23 (14.56) |
| Grade | |
| G1 | 16 (10.13) |
| G2 | 65 (41.14) |
| G3 | 43 (27.22) |
| Unknown | 34 (21.51) |
| T | |
| T1 | 27 (17.09) |
| T2 | 37 (23.42) |
| T3 | 75 (47.47) |
| T4 | 4 (2.53) |
| Unknown | 15 (9.49) |
| N | |
| N0 | 65 (41.14) |
| N1 | 62 (39.24) |
| N2 | 9 (5.70) |
| N3 | 6 (3.80) |
| Unknown | 16 (10.12) |
| M | |
| M0 | 119 (75.32) |
| M1 | 8 (5.06) |
| Unknown | 31 (19.62) |
| Stage | |
| I | 16 (10.13) |
| II | 68 (43.04) |
| III | 48 (30.38) |
| IV | 8 (5.06) |
| Unknown | 18 (11.39) |
EC, esophageal cancer.