Table II.
Comparison of oropharyngeal subsite involvement in tested and untested OPSCC patients.
| Group | Palatine tonsila | Base of tonguea | Palatine archa | Posterior walla | NOS |
|---|---|---|---|---|---|
| 1992-2010 | 74 | 74 | 37 | 2 | 8 |
| Tested - n (%) | 30 (40.5) | 13 (17.5) | 11 (29.7) | 2(100) | 4(50) |
| pb | 0.02 | Ns | Ns | Ns | Ns |
| 2010-2015 | 30 | 45 | 27 | 1 | 4 |
| Tested - n (%) | 29 (96.6) | 37 (82.2) | 26 (96.2) | 1(100) | 3(75) |
| pb | Ns | Ns | Ns | Ns | Ns |
| Total | 104 | 109 | 64 | 3 | 12 |
| Tested - n (%) | 59 (56.7) | 50 (45.8) | 37 (57.8) | 3(100) | 7 (18.5) |
| pb | 0.03 | Ns | Ns | Ns | Ns |
a: more than one subsite could be involved in the same patient
b: compared with all other sites combined
NOS: not otherwise specified; Ns: not significant.