| Characteristic |
Patients with PET/CT data (n=98) |
All patients undergoing ND (n=121) |
ND <12 weeks (n=60) |
ND ≥12 weeks (n=61) |
| Age in years, mean (range) |
59.0 (39.6-78.7) |
58.7 (39.6-78.7) |
57.3 (39.6-77.6) |
60.1 (44.3-78.7) |
| Sex |
| Male |
83 (84.7) |
101 (83.5) |
47 (78.3) |
54 (88.5) |
| Female |
15 (15.3) |
20 (16.5) |
13 (21.7) |
7 (11.5) |
| Race |
| Caucasian |
90 (91.8) |
108 (89.3) |
51 (85.0) |
57 (93.4) |
| African-American |
8 (8.2) |
13 (10.7) |
9 (15.0) |
4 (6.6) |
| Smoking history |
| Never smoker |
30 (30.6) |
33 (27.3) |
16 (26.7) |
17 (27.9) |
| Ever smoker |
68 (69.4) |
88 (72.7) |
44 (73.3) |
44 (72.1) |
| Primary site |
| Oropharynx |
77 (78.6) |
96 (79.3) |
47 (78.3) |
49 (80.3) |
| Hypopharynx |
9 (9.2) * |
12 (9.9) * |
8 (13.3) * |
4 (6.6) |
| Larynx |
14 (14.3) † |
15 (12.4) † |
6 (10.0) |
9 (14.8) † |
| HPV status ‡ |
| Negative |
15 (19.5) |
18 (18.8) |
11 (23.4) |
7 (14.3) |
| Positive |
35 (45.5) |
46 (47.9) |
19 (40.4) |
27 (55.1) |
| Unknown |
27 (35.1) |
32 (33.3) |
17 (36.2) |
15 (30.6) |
Unless otherwise noted, all data are listed as number of patients (percentage).
HPV= human papillomavirus
*One patient presented with synchronous primaries of the oropharynx and hypopharynx
†One patient presented with synchronous primaries of the oropharynx and larynx
‡HPV status collected only for patients with tumors of the oropharynx |
