Table 2.
Disease features
| Author [ref] | Year | Patients (total) |
Primary tumor site no. (%) |
Disease stage no (%) |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oral cavity | Oropharynx | Larynx | Hypopharynx | Nasopharynx | Other/unknown | I | II | III | IV | |||
| Braga F et al. [45] | 2011 | 24 | 5 (20.8) | 3 (12.5) | 7 (29.2) | 4 (16.7) | 1 (4.1) | 4 (16.7) | ns | ns | ns | ns |
| Meng Z et al. [46] | 2012 | 84 | 0 | 0 | 0 | 0 | 84 (100) | 0 | 5 (5.9) | 27 (32.2) | 34 (40.5) | 18 (21.4) |
| Simcock R et al. [47] | 2013 | 144 | 11 (7.7) | 100 (69.4) | 9 (6.2) | 6 (4.2) | 6 (4.2) | 12 (8.3) | nsa | ns | ns | ns |
| Lu W et al. [48] | 2016 | 42 | 1 (2.4) | 30 (71.4) | 2 (4.8) | 1 (2.4) | 2 (4.8) | 6 (14.2) | 1 (2.4) | 0 | 5 (11.9) | 36 (85.7) |
| Garcia MK et al. [49] | 2019 | 358a | 0 | 137 (38.3) | 0 | 0 | 221 (61.7) | 0 | 11 (3) | 37 (10.4) | 118 (33) | 192 (53.6) |
ns not stated
aIncludes all participants with baseline data plus at least 1 follow-up at any time
bOnly separate T and N data, no information on stage