Table 1 Patient demographics and clinical characteristics (n = 20300)
Characteristics | Level | Number (%) |
|---|---|---|
Age at diagnosis, years | Mean ± SD | 60.76 ± 13.207 |
Median (range) | 60 (17~101) | |
≤60 | 10283(50.7%) | |
> 60 | 10017(49.3%) | |
Sex | Male | 12097(59.6%) |
Female | 8203(40.4%) | |
Race | White | 16403(80.8%) |
Black | 1663(8.2%) | |
American Indian/Alaska Native | 166(0.8%) | |
Asian or Pacific Islander | 2068(10.2%) | |
Marital status | Married | 11834(58.3%) |
Unmarried | 7742(38.1%) | |
Unknown | 724(3.6%) | |
Tumour grade | Well differentiated | 1255(6.2%) |
Moderately differentiated | 14457(71.2%) | |
Poorly differentiated | 2676(13.2%) | |
Undifferentiated | 293(1.4%) | |
Unknown | 1616(8.0%) | |
Tumour size | 0~3 cm | 5856(28.8%) |
3~5 cm | 8097(39.9%) | |
> 5 cm | 6347(31.3%) | |
AJCC Stage | II | 7808(38.5%) |
III | 12492(61.5%) | |
AJCC T Stage | T1 | 554(2.7%) |
T2 | 1609(7.9%) | |
T3 | 16223(79.9%) | |
T4 | 1914(9.4%) | |
AJCC N Stage | N0 | 7808(38.5%) |
N1 | 8745(43.1%) | |
N2 | 3747(18.5%) | |
Treatment modality | Only surgery | 2955(14.6%) |
Neoadjuvant RT | 12133(59.8%) | |
Adjuvant RT | 3765(18.5%) | |
Surgery + chemotherapy | 1447(7.1%) |