Table 2.
Relationship between GST-π and clinicopathological characteristics of ESCC
| Factor | n | (+) | (-) | Positive (%) | P value |
| Sex | |||||
| M | 86 | 46 | 40 | 53.49 | |
| F | 16 | 9 | 7 | 56.25 | 0.839 |
| Age (yr) | |||||
| < 60 | 58 | 33 | 25 | 56.90 | |
| ≥ 60 | 44 | 22 | 22 | 50.00 | 0.489 |
| Histological grade | |||||
| Well | 32 | 21 | 11 | 65.63 | |
| Moderate | 50 | 27 | 23 | 54.00 | |
| Poor | 20 | 7 | 13 | 35.00 | 0.031 |
| Lymph node metastasis | |||||
| (-) | 55 | 31 | 24 | 56.36 | |
| (+) | 47 | 24 | 23 | 51.06 | 0.592 |
| Location1 | |||||
| Upper | 11 | 5 | 6 | 45.45 | |
| Middle | 55 | 29 | 26 | 52.73 | |
| Lower | 36 | 21 | 15 | 58.33 | 0.660 |
| T Stage | |||||
| T0-1 | 7 | 3 | 4 | 2.86 | |
| T2-4 | 95 | 52 | 43 | 54.74 | 0.543 |
1
Location: Upper, upper intra-thoracic esophagus; Middle, middle intra-thoracic esophagus; Lower, lower intra-thoracic esophagus. GST-π: Glutathione-s-transferase π.