Author | E1 | E2 | BE | SU | SM | CH | |
---|---|---|---|---|---|---|---|
number of patients | 209 | 803 | 304 | 148 | 165 | 533 | |
Sex % | M | 74.2 | 81.0 | 72.0 | 90.0 | 66.0 | 79.2 |
F | 25.8 | 19.0 | 28.0 | 10.0 | 34.0 | 20.8 | |
Primary site % | Oral Cavity | / | 12.0 | 13.0 | 50.6 | 100.0 | 10.3 |
Oropharynx | / | 52.5 | 28.0 | / | 60.4 | ||
Hypopharynx | / | 12.0 | / | / | 13.7 | ||
Nasopharynx | / | / | 3.0 | / | / | / | |
Larynx | 100.0 | 35.5 | 44.0 | 49.4 | / | 15.6 | |
T stage % | T1 | 6.0 | 67.0 | 3.0 | 26.1 | 2.0 | 5.8 |
T2 | 37.0 | 42.0 | 25.0 | 27.6 | |||
T3 | 35.0 | 33.0 | 33.0 | 73.9 | 28.0 | 37.1 | |
T4 | 22.0 | 22.0 | 35.0 | 29.3 | |||
Tx | / | / | / | / | / | 0.2 | |
N stage % | N0 | 65.0 | 65.0 | 63.0 | 33.8 | 26.0 | 21.8 |
 | N1 | 35.0 | 35.0 | 18.0 | 66.2 | 16.0 | 18.6 |
 | N2a | 15.0 | 1.0 | 9.6 | |||
 | N2b | 39.0 | 17.8 | ||||
 | N2c | 17.0 | 19.3 | ||||
 | N3 | 4.0 | 1.0 | 12.9 |