Table I.
Sample characteristics by aspiration status among 103 participants
| Characteristic | All patients | Aspirators | Non-Aspirators | P-value |
|---|---|---|---|---|
| Sex | .473 | |||
| Male | 94 (91%) | 30 (88%) | 64 (93%) | |
| Female | 9 (9%) | 4 (12%) | 5 (7%) | |
|
| ||||
| Age | ||||
| Mean±SD | 61.34±9.19 | 65.4±7.6 | 59.3±9.3 | .001 |
|
| ||||
| T Staging | .084 | |||
| T0/T1 | 22 (21%) | 4 (12%) | 18 (26%) | |
| T2 | 33 (32%) | 9 (26%) | 24 (35%) | |
| T3 | 23 (22%) | 8 (24%) | 15 (22%) | |
| T4 | 25 (24%) | 13 (38%) | 12 (17%) | |
|
| ||||
| N Staging | .507 | |||
| N0 | 11 (11%) | 5 (15%) | 6 (9%) | |
| N1 | 11 (11%) | 4 (12%) | 7 (10%) | |
| N2 | 75 (73%) | 22 (65%) | 53 (77%) | |
| N3 | 6 (6%) | 3 (9%) | 3 (4%) | |
|
| ||||
| Site | .267 | |||
| Oropharynx | 87 (84%) | 26 (76%) | 61 (88%) | |
| Nasopharynx | 1 (1%) | 1 (3%) | 0 (0%) | |
| Hypopharynx | 3 (3%) | 1 (3%) | 2 (3%) | |
| Larynx | 9 (9%) | 5 (15%) | 4 (6%) | |
| Unknown | 3 (3%) | 1 (3%) | 2 (3%) | |
| Primary | ||||
|
| ||||
| Treatment | .002 | |||
| CRT | 69 (67%) | 18 (53%) | 51 (74%) | |
| Induction + CRT | 21 (20%) | 12 (35%) | 9 (13%) | |
| Induction + RT | 3 (3%) | 3 (9%) | 0 (0%) | |
| RT alone | 2 (2%) | 1 (3%) | 1 (1%) | |
| Surgery + | 6 (6%) | 0 (0%) | 6 (9%) | |
| POCRT | 2 (2%) | 0 (0%) | 2 (3%) | |
| Surgery + PORT | ||||
|
| ||||
| Smoking Status | .305 | |||
| Never | 68 (66%) | 19 (56%) | 49 (71%) | |
| Former | 29 (28%) | 13 (38%) | 16 (23%) | |
| Current | 6 (6%) | 2 (6%) | 4 (6%) | |
|
| ||||
| Smoking Pack-Years for Former or Current Smokers | ||||
| Mean±SD | 35.7±19.6 | 36.1±20.8 | 35.5±19.2 | .938 |
|
| ||||
| BMI | .007 | |||
| Underweight | 2 (2%) | 2 (6%) | 0 (0%) | |
| Healthy weight | 34 (33%) | 17 (50%) | 17 (25%) | |
| Overweight | 47 (46%) | 11 (32%) | 36 (52%) | |
| Obese | 20 (19%) | 4 (12%) | 16 (23%) | |
|
| ||||
| MEP | ||||
| Mean±SD | 119.2±39.3 | 100.8±35.2 | 128.2±38.3 | <0.001 |
|
| ||||
| PCF | ||||
| Mean±SD | 438.3±114.9 | 380.3±112.9 | 466.8±105.4 | <0.001 |