Table 2.
Relationship between positive rate of serum p53-Abs and clinical pathophysiological characteristics in EC patients
| n | - | + | Positive (%) | χ2 | P | |
| Age (yr) | 0.27 | 0.870 | ||||
| < 50 | 16 | 10 | 6 | 37.5 | ||
| ≥ 50 | 30 | 18 | 12 | 40.0 | ||
| Sex | 0.11 | 0.918 | ||||
| Male | 38 | 23 | 15 | 39.5 | ||
| Female | 8 | 5 | 3 | 37.5 | ||
| TNM stage | 6.09 | 0.014 | ||||
| I+ II | 27 | 21 | 6 | 22.2 | ||
| III + IV | 19 | 8 | 11 | 57.9 | ||
| Histological grade | 10.43 | 0.002 | ||||
| I | 15 | 13 | 2 | 13.3 | ||
| II | 17 | 11 | 6 | 35.3 | ||
| III | 14 | 4 | 10 | 71.4 | ||
| Lymph node metastasis | 6.00 | 0.015 | ||||
| Positive | 18 | 7 | 11 | 61.1 | ||
| Negative | 28 | 21 | 7 | 25.0 | ||
| Size of tumor | 2.74 | 0.102 | ||||
| < 6 cm | 32 | 22 | 10 | 31.3 | ||
| ≥ 6 cm | 14 | 6 | 8 | 57.1 | ||
| Site of the tumor | 0.02 | 0.953 | ||||
| Upper thorax | 5 | 3 | 2 | 40.0 | ||
| Middle thorax | 21 | 13 | 8 | 38.1 | ||
| Lower thorax | 20 | 12 | 8 | 40.0 |
TNM: Tumor, nodes and metastasis.