Table 3.
Clinical factors affecting paratracheal lymph node metastasis in patients with hypopharyngeal squamous cell carcinoma (N = 64)
| Parameters | PTN positive (N = 14) | PTN negative (N = 50) | p value |
|---|---|---|---|
| Age | 0.362 | ||
| <60 | 6 (16.7%) | 30 (83.3%) | |
| ≥60 | 8 (28.6%) | 20 (71.4%) | |
| Gender | 1.000 | ||
| Male | 14 (22.6%) | 48 (77.4%) | |
| Female | 0 (0%) | 2 (100%) | |
| Primary site | 0.039* | ||
| PS | 9 (20.0%) | 36 (80.0%) | |
| PPW | 1 (8.3%) | 11 (91.7%) | |
| PC | 4 (57.1%) | 3 (42.9%) | |
| T stage | 0.862 | ||
| T1 | 0 (0%) | 2 (100%) | |
| T2 | 6 (24.0%) | 19 (76.0%) | |
| T3 | 5 (20.0%) | 20 (80.0%) | |
| T4 | 3 (25.0%) | 9 (75.0%) | |
| N stage | 0.005* | ||
| N0 | 0 (0%) | 15 (100%) | |
| N1 | 1 (10.0%) | 9 (90.0%) | |
| N2 | 12 (32.4%) | 25 (67.6%) | |
| N3 | 1 (50.0%) | 1 (50.0%) | |
| Histologic grade | 0.460 | ||
| Well differentiated | 1 (11.1%) | 8 (88.9%) | |
| Moderately differentiated | 9 (20.9%) | 34 (79.1%) | |
| Poorly differentiated | 4 (33.3%) | 8 (66.7%) | |
| Apex involvement | 0.397 | ||
| Yes | 3 (33.3%) | 6 (66.7%) | |
| No | 11 (20.0%) | 44 (80.0%) |
PTN paratracheal lymph node, PS pyriform sinus, PPW posterior pharyngeal wall, PC postcricoid