Table 1. Clinical and tumor characteristics of patients.
Variables | SEER Cohort (n=4218) | FMMU Cohort (n=244) | ||
---|---|---|---|---|
No. | % | No. | % | |
Age, years | ||||
15-44 | 786 | 18.6 | 43 | 17.6 |
45-54 | 634 | 15.1 | 40 | 16.4 |
55-64 | 874 | 20.7 | 54 | 22.1 |
65-74 | 857 | 20.3 | 44 | 18.1 |
75-84 | 736 | 17.5 | 45 | 18.4 |
85+ | 331 | 7.8 | 18 | 7.4 |
Race | ||||
White | 3491 | 82.8 | 0 | 0 |
Black | 372 | 8.8 | 0 | 0 |
Other* | 355 | 8.4 | 244 | 100 |
Sex | ||||
Female | 1675 | 39.7 | 100 | 41.0 |
Male | 2543 | 60.3 | 144 | 59.0 |
Marital status | ||||
Unmarried | 1122 | 26.6 | 50 | 20.5 |
Married | 3096 | 73.4 | 194 | 79.5 |
Grade | ||||
I | 755 | 17.9 | 53 | 21.7 |
II | 1451 | 34.4 | 78 | 32.0 |
III | 1399 | 33.2 | 80 | 32.8 |
IV | 613 | 14.5 | 33 | 13.5 |
Laterality | ||||
Left | 2127 | 50.4 | 129 | 52.9 |
Right | 2094 | 49.6 | 115 | 47.1 |
Site | ||||
Parotid | 3617 | 85.8 | 196 | 80.3 |
Submandibular | 550 | 13.0 | 42 | 17.2 |
Sublingual | 51 | 1.2 | 6 | 2.5 |
T stage | ||||
T1 | 1293 | 30.6 | 83 | 34.0 |
T2 | 1079 | 25.6 | 56 | 23.0 |
T3 | 944 | 22.4 | 54 | 22.1 |
T4a | 737 | 16.5 | 37 | 15.2 |
T4b | 165 | 3.9 | 14 | 5.7 |
N stage | ||||
N0 | 2838 | 67.3 | 148 | 68.9 |
N1 | 590 | 14.0 | 32 | 13.1 |
N2a | 40 | 0.9 | 3 | 1.2 |
N2b | 687 | 16.3 | 34 | 13.9 |
N2c | 27 | 0.6 | 3 | 1.2 |
N3 | 36 | 0.9 | 4 | 1.7 |
M stage | ||||
M0 | 4030 | 95.5 | 232 | 95.1 |
M1 | 188 | 4.5 | 12 | 4.9 |
Surgery Performed | ||||
Yes | 3971 | 94.1 | 244 | 100 |
None | 247 | 5.9 | 0 | 0 |
Radiation | ||||
Yes | 2626 | 62.3 | 162 | 66.4 |
None | 1592 | 37.7 | 82 | 33.6 |
*Other including American Indian/AK Native, Asian/Pacific Islander.