Table 2 Tumor characteristics by margin status in incident tongue and larynx cancer cases
From: Surgical margins and survival after head and neck cancer surgery
Negative Margins (N = 233) | Positive Margins (N = 28) | P* | |||
|---|---|---|---|---|---|
N | % | N | % | ||
Tongue | |||||
Tumor size (cm) | |||||
≤ 2 | 60 | 49.5 | 6 | 46.2 | |
>2 cm | 34 | 28.2 | 5 | 38.5 | |
Missing | 27 | 22.3 | 2 | 15.4 | |
TNM Stage | |||||
0 – I | 66 | 54.5 | 2 | 15.4 | |
II | 22 | 18.2 | 2 | 15.4 | |
III | 17 | 14.1 | 2 | 15.4 | |
IV | 14 | 11.6 | 7 | 53.8 | |
Missing | 2 | 1.7 | 0 | -- | |
Larynx | |||||
Tumor size (cm) | |||||
≤ 2 | 23 | 20.5 | 2 | 13.3 | |
>2 cm | 42 | 37.5 | 7 | 46.7 | |
Missing | 47 | 42.0 | 6 | 40.0 | |
TNM Stage | |||||
0 – I | 44 | 39.2 | 3 | 20.0 | |
II | 12 | 10.7 | 1 | 6.7 | |
III | 29 | 25.9 | 0 | -- | |
IV | 25 | 22.3 | 11 | 73.3 | |
Missing | 2 | 1.8 | 0 | -- | |
Overall | |||||
Primary site | |||||
Tongue | 121 | 51.9 | 13 | 46.4 | |
Larynx | 112 | 48.1 | 15 | 53.6 | |
Tumor size (cm) | |||||
≤ 2 | 83 | 35.6 | 8 | 28.5 | 0.575 |
>2 cm | 76 | 32.6 | 12 | 42.8 | |
Missing | 74 | 31.7 | 8 | 28.5 | |
TNM Stage | |||||
0 – I | 110 | 47.2 | 5 | 17.8 | <0.0001 |
II | 34 | 14.6 | 3 | 10.7 | |
III | 46 | 19.7 | 2 | 0.7 | |
IV | 39 | 16.7 | 18 | 64.2 | |
Missing | 4 | 0.2 | 0 | 0 | |