Table 2.
Baseline characteristics of patients with advanced head and neck cancer (HNC) included in 2 data sets under evaluationa.
| Characteristic | Data set A (n=7366) | Data set B (n=11,386) | |
| Sex, n (%) | |||
|
|
Female | 1723 (23.4) | 3408 (29.9) |
|
|
Male | 5643 (76.6) | 7967 (70) |
|
|
Missing or unknown | 0 (0) | 11 (0.1) |
| Age at first advanced HNC diagnosis (y), median (IQR) | 65 (58-72) | 61 (54-68) | |
| Age at first advanced HNC diagnosis (y), n (%) | |||
|
|
<18 | 0 (0) | 31 (0.27) |
|
|
18-44 | 187 (2.53) | 688 (6.04) |
|
|
45-64 | 3402 (46.19) | 5955 (52.3) |
|
|
65-88 | 3777 (51.28) | 4111 (36.11) |
|
|
≥89 | 0 (0) | 6 (0.05) |
|
|
Missing or unknown | 0 (0) | 595 (5.23) |
| Race or ethnicity, n (%) | |||
|
|
American Indian or Alaska Native | N/Ab | 40 (0.35) |
|
|
Asian | 103 (1.4) | 165 (1.45) |
|
|
Black or African American | 487 (6.61) | 1250 (10.98) |
|
|
Hispanic or Latino | 13 (0.18) | 0 (0) |
|
|
Native Hawaiian or other Pacific Islander | N/A | 6 (0.05) |
|
|
White | 4939 (67.05) | 9239 (81.14) |
|
|
Missing | 650 (8.82) | 686 (6.02) |
|
|
Other race | 1174 (15.94) | 0 (0) |
| AJCCc stage at first HNC diagnosis, n (%) | |||
|
|
0 | 2 (0.03) | 28 (0.25) |
|
|
I | 419 (5.69) | 603 (5.3) |
|
|
II | 505 (6.86) | 542 (4.76) |
|
|
III | 929 (12.61) | 798 (7.01) |
|
|
IV | 4330 (58.78) | 4978 (43.72) |
|
|
Missing or unknown | 1181 (16.03) | 4437 (38.97) |
| Year of first advanced HNC diagnosis, n (%) | |||
|
|
Before 2006 | 0 (0) | 1245 (10.9) |
|
|
2006-2009 | 0 (0) | 1537 (13.5) |
|
|
2010-2012 | 1068 (14.5) | 2721 (23.9) |
|
|
2013-2018 | 5435 (73.8) | 5577 (49.0) |
|
|
2019 or later | 863 (11.7) | 306 (2.7) |
aPercentages may not add up to 100% because of rounding.
bN/A: not applicable.
cAJCC: American Joint Committee on Cancer.