Table 3.
Human papilloma virus status in esophageal squamous cell carcinoma patients investigated from Lublin region
| HPV risk | n (%) | χ2 |
| Tumor samples (n = 56) | ||
| High risk | 5 (8.9) | |
| Low risk | 19 (33.9)b | 24.487 |
| Others | 4 (7.1) | |
| Total | 28 (50.0)d | 21.185 |
| Mucosa samples (n = 56) | ||
| High risk | 3 (5.3) | |
| Low risk | 12 (21.4)b | 23.451 |
| Others | 6 (10.7) | |
| Total | 21 (37.5)d | 27.521 |
| Control samples (n = 35) | ||
| High risk | 0 (0) | |
| Low risk | 2 (5.7) | |
| Others | 2 (5.7) | |
| Total | 4 (11.4) |
b
P < 0.01 vs human papilloma virus (HPV) high risk, Fisher test;
d
P < 0.01 vs control, Fisher test.