Table 1.
Baseline characteristics of patients with head and neck squamous cell carcinoma treated with primary surgery (n = 37 730)
| Characteristic | N (%) |
|---|---|
| Age at diagnosis | |
| Median (IQR) | 60 (53–68) |
| TTS (days) | |
| Median (IQR) | 33 (21–49) |
| 1–30 | 16 957 (45) |
| 30–60 | 15 348 (41) |
| 60–90 | 3881 (10) |
| 91+ | 1544 (4) |
| Great circle distance | |
| Median (IQR) | 18.1 (7.1–47.9) |
| Sex | |
| Male | 26 833 (71) |
| Female | 10 897 (29) |
| Race (n = 37 311) | |
| White | 32 978 (88) |
| Black | 3140 (8) |
| Other | 1193 (3) |
| Median household income (n = 37 082) | |
| <$40 227 | 7539 (20) |
| $40 227–50 353 | 9010 (24) |
| $50 354–63 332 | 8616 (23) |
| ≥$63 333 | 11 917 (32) |
| Percent with no high school degree (n = 37 186) | |
| ≥17.6 | 7943 (21) |
| 10.9–17.5 | 10 210 (27) |
| 6.3–10.8 | 10 456 (28) |
| <6.3 | 8577 (23) |
| Insurance status (n = 36 570) | |
| Not insured | 2042 (6) |
| Private insurance | 16 464 (45) |
| Public insurance | 18 064 (49) |
| Urban status (n = 36 853) | |
| Nonmetropolitan | 7218 (20) |
| Metropolitan | 29 635 (80) |
| Facility type (n = 36 651) | |
| Community cancer program | 1491 (4) |
| Comprehensive community cancer program | 8668 (24) |
| Academic/research program | 23 110 (63) |
| Integrated network cancer program | 3382 (9) |
| Charlson-Deyo score | |
| 0 | 28 028 (74) |
| 1 | 7297 (19) |
| 2 | 1746 (5) |
| 3+ | 659 (2) |
| Surgical margin status (n = 35 902) | |
| Negative | 30 244 (84) |
| Positive | 5658 (16) |
| TNM pathologic stage (n = 32 394) | |
| 1 | 5112 (16) |
| 2 | 3677 (11) |
| 3 | 5183 (16) |
| 4 | 18 422 (57) |
| Adjuvant treatment | |
| No adjuvant treatment | 16 451 (44) |
| Adjuvant radiation | 9860 (26) |
| Adjuvant chemoradiation | 11 419 (30) |
| Primary site | |
| Oral cavity | 18 672 (49) |
| Oropharynx | 10 697 (28) |
| Larynx | 7641 (20) |
| Hypopharynx | 720 (2) |
IQR interquartile range, TTS time to surgery; TNM tumor-node-metastasis