Table 1.
Characteristics of the lesions used in the analysis. For tumor subsite, HPV and p16 status, p-values are based on the Fisher exact test. For the mean and standard deviations of the 18F-FDG maximum SUV and 18F-FMISO TBRmax, p-values are based on the 2-sample t-test.
| Type |
Ntrain (Fraction) |
Ntest (Fraction) |
p-value |
|---|---|---|---|
| Subsite | |||
|
| |||
| Base of Tongue | 40 (0.51) | 21 (0.5) | 1 |
| Hypopharynx | 1 (0.01) | 1 (0.02) | 1 |
| Supraglottic larynx | 2 (0.03) | 1 (0.02) | 1 |
| Tonsil | 32 (0.41) | 19 (0.45) | 0.7 |
| Unknown | 4 (0.05) | 0 (0) | 0.3 |
|
| |||
| HPV status | |||
|
| |||
| HPV+ | 45 (0.57) | 27 (0.64) | 0.6 |
| HPV− | 11 (0.14) | 7 (0.17) | 0.8 |
| Unknown | 23 (0.29) | 8 (0.19) | 0.3 |
|
| |||
| p16 status | |||
|
| |||
| p16+ | 57 (0.72) | 34 (0.81) | 0.4 |
| p16− | 7 (0.09) | 4 (0.1) | 1 |
| Unknown | 15 (0.19) | 4 (0.1) | 0.2 |
|
| |||
| Type | Training Mean (SD) |
Test Mean (SD) |
p-value |
|
| |||
| 18F-FMISO TBRmax | 1.91 (0.73) | 1.76 (0.56) | 0.3 |
| 18F-FDG SUVmax | 13.64 (5.76) | 13.74 (5.23) | 0.9 |