Table 3.
Univariate analysis of risk factors affecting neck metastasis
| n | Neck metastasis | ||||||
|---|---|---|---|---|---|---|---|
|
|
|||||||
| Variable | Positive (n = 17) | Negative (n = 38) | P value | ||||
|
|
|
||||||
| n | (%) | n | (%) | ||||
| Age | > 60 | 26 | 6 | (23.1) | 20 | (76.9) | 0.260 |
| ≤ 60 | 29 | 11 | (37.9) | 18 | (62.1) | ||
| Sex | Men | 39 | 13 | (33.3) | 26 | (66.7) | 0.750 |
| Women | 16 | 4 | (25.0) | 12 | (75.0) | ||
| T classification | 1 | 29 | 2 | (6.9) | 27 | (93.1) | < 0.001* |
| 2 | 11 | 1 | (9.1) | 10 | (90.9) | ||
| 3 | 11 | 10 | (90.9) | 1 | (9.1) | ||
| 4 | 4 | 4 | (100) | 0 | (0.0) | ||
| Differentiation | Well | 44 | 12 | (27.3) | 32 | (72.7) | 0.286 |
| Moderately or poorly | 11 | 5 | (45.5) | 6 | (54.5) | ||
| Vascular invasion | Negative | 43 | 11 | (25.6) | 32 | (74.4) | 0.158 |
| Positive | 12 | 6 | (50.0) | 6 | (50.0) | ||
| Lymphatic invasion | Negative | 43 | 9 | (20.9) | 34 | (79.1) | 0.005* |
| Positive | 12 | 8 | (66.7) | 4 | (83.3) | ||
*
Statistically significant according to Fisher’s exact test (two-tailed).