From: Lymph node ratio as a prognostic factor in head and neck cancer patients
Parameter | LFFS (%) | DMFS (%) | OS (%) |
---|---|---|---|
Age | |||
≦51 | 61.3 | 76.1 | 58.4 |
> 51 | 79.9 | 88.0 | 63.4 |
p = 0.02 | p = 0.13 | p = 0.76 | |
Tumor site | |||
Oral cavity | 64.8 | 81.7 | 56.4 |
others | 88.0 | 82.9 | 70.4 |
p = 0.06 | p = 0.46 | p = 0.28 | |
Stage | |||
I + II | 80.2 | 100 | 71.5 |
III + IV | 68.3 | 76.6 | 57.4 |
p = 0.23 | p = 0.04 | p = 0.13 | |
Margin | |||
Positive | 64.6 | 89.5 | 41.0 |
Negative | 73.3 | 79.2 | 67.6 |
p = 0.85 | p = 0.14 | p = 0.05 | |
Extracapsular extension | |||
Positive | 68.7 | 77.0 | 64.0 |
Negative | 70.8 | 83.4 | 58.6 |
p = 0.76 | p = 0.93 | p = 0.11 | |
LNR for all patients | |||
< 0.1 | 76.1 | 87.2 | 67.0 |
≧0.1 | 54.9 | 66.4 | 41.0 |
p = 0.015 | p = 0.06 | p = 0.004 | |
LNR for lymph node-positive patients | |||
< 0.06 | 75.6 | 94.1 | 77.8 |
0.06–0.17 | 74.8 | 71.1 | 59.7 |
> 0.17 | 24.2 | 57.3 | 23.5 |
p = 0.011 | p = 0.18 | p = 0.003 | |
Absolute number of lymph node metastasis | |||
1 | 60.0 | 75.8 | 48.5 |
> 1 | 66.4 | 76.6 | 58.0 |
p = 0.46 | p = 0.96 | p = 0.28 |