Table 2.
Clinicopathologic characteristics of HNSCC patients in two cohorts
| Variables | Primary cohort | Validation cohort | ||
|---|---|---|---|---|
| N = 67 | % | N = 43 | % | |
| Age | ||||
| ≤ 60 | 23 | 34.33 | 14 | 32.56 |
| > 60 | 44 | 65.67 | 29 | 67.44 |
| Sex | ||||
| Female | 25 | 37.31 | 15 | 34.88 |
| Male | 42 | 62.68 | 28 | 65.12 |
| TNM stage | ||||
| I | 2 | 2.99 | 2 | 4.65 |
| II | 18 | 26.87 | 10 | 23.26 |
| III | 10 | 14.93 | 7 | 16.28 |
| IV | 32 | 47.76 | 21 | 48.84 |
| NA | 5 | 7.46 | 3 | 6.98 |
| neoplasm histologic grade | ||||
| 1 | 12 | 17.91 | 9 | 20.93 |
| 2 | 39 | 58.21 | 23 | 53.49 |
| 3 | 14 | 20.90 | 10 | 23.26 |
| NA | 2 | 2.99 | 1 | 2.33 |
| Ragnum Hypoxia Score | ||||
| <0 | 1 | 1.49 | 1 | 2.33 |
| 0–9 | 10 | 14.93 | 5 | 11.63 |
| 10–19 | 49 | 73.13 | 31 | 72.09 |
| ≥ 20 | 7 | 10.45 | 6 | 13.95 |
| Survival status | ||||
| Alive | 28 | 41.79 | 17 | 39.53 |
| Dead | 39 | 58.21 | 26 | 60.47 |