Table 1 Clinical characteristics.
From: Postoperative radiotherapy to the neck for pN1 status HNSCC patients after neck dissection
Classifications | PORT Group (N = 79) | non-PORT Group (N = 129) | Overall | P |
|---|---|---|---|---|
Age (mean) | 54.34 | 54.18 | .921 | |
Sex | ||||
M | 67 (84.8%) | 92 (71.3%) | 159 | .029 |
F | 12 (15.2%) | 37 (28.7%) | 49 | |
Cigarette use | ||||
Yes | 49 (62%) | 65 (50.4%) | 114 | .115 |
No | 30 (38%) | 64 (49.6%) | 94 | |
Alcohol consumption | ||||
Yes | 36 (45.6%) | 44 (34.1%) | 80 | .108 |
No | 43 (54.4%) | 85 (65.9%) | 128 | |
pT status | ||||
pT1 | 14 (17.7%) | 20 (15.5%) | 34 | .427 |
pT2 | 43 (54.4%) | 62 (48.1%) | 105 | |
pT3 | 9 (11.4%) | 26 (20.2%) | 35 | |
pT4 | 13 (16.5%) | 21 (16.3%) | 34 | |
Primary site | ||||
Oral cavity | 19 (24.1%) | 114 (88.4%) | 133 | 0.000 |
Oropharynx | 29 (36.7%) | 5 (3.9%) | 34 | |
Hypopharynx | 31 (39.2%) | 10 (7.8%) | 41 | |
High-risk factors in the primary site | ||||
Perineural invasion | 2 (2.5%) | 0 | 2 | .107 |
Lymphovascular invasion | 2 (2.5%) | 1 (0.8%) | 3 | |
Positive margin | 1 (1.3%) | 0 | 1 | |
None | 74 (93.7%) | 128 (99.2%) | 202 | |
Lymph nodes | ||||
Median | 16.0 | 18.0 | NA | .164 |
Minimum | 4 | 4 | NA | |
Maximum | 57 | 78 | NA | |
PORT to the primary bed | ||||
Yes | 73 (69.1%) | 109 (84.5%) | 182 | .130 |
No | 6 (9.9%) | 20 (15.5%) | 26 | |
Concomitant chemoradiotherapy | ||||
Yes | 13 (16.5%) | 19 (14.7%) | 32 | .843 |
No | 66 (83.5%) | 110 (85.3%) | 176 | |
