Patient characteristics (n = 197)
| NI-RADS 3 (n = 128) | NI-RADS 4 (n = 69) | |
|---|---|---|
| Sex | ||
| Male | 97 (76%) | 51 (74%) |
| Female | 31 (24%) | 18 (26%) |
| Age (yr) | Range = 27–87, mean = 59, median = 60 | Range = 26–87, mean = 62, median = 64 |
| Primary tumor location | ||
| Oropharynx | 55 (43%) | 21 (30%) |
| Oral cavity | 32 (25%) | 26 (38%) |
| Larynx | 29 (23%) | 14 (20%) |
| Hypopharynx | 5 (4%) | 4 (6%) |
| Paranasal sinuses/nasal cavity | 3 (2%) | 3 (4%) |
| Nasopharynx | 2 (1.5%) | 1 (2%) |
| Unknown | 2 (1.5%) | 0 (0%) |
| HPV status (oropharynx) | ||
| Positive | 32 (58%) | 12 (57%) |
| Negative | 18 (33%) | 2 (10%) |
| Unknown | 5 (9%) | 7 (33%) |
| TNM stage (7th ed AJCC11) | ||
| Stage I | 3 (2%) | 4 (6%) |
| Stage II | 12 (10%) | 2 (3%) |
| Stage III | 20 (16%) | 5 (7%) |
| Stage IV | 91 (71%) | 58 (84%) |
| Unknown primary | 2 (1%) | 0 (0%) |
Note:—TNM indicates Tumor, Node, Metastasis.