Table 1 Patient characteristics.
Unmatched cohort | P | PSM cohort | P | |||
|---|---|---|---|---|---|---|
Chemoradiotherapy (n = 55) | Surgery (n = 460) | Chemoradiotherapy (n = 49) | Surgery (n = 49) | |||
Age | 0.377 | 0.682 | ||||
< 67 | 23 (41.8%) | 226 (49.1%) | 22 (44.9%) | 19 (38.8%) | ||
≥ 67 | 32 (58.2%) | 234 (50.9%) | 27 (55.1%) | 30 (61.2%) | ||
Sex | 0.858 | 0.999 | ||||
Female | 10 (18.2%) | 93 (20.2%) | 7 (14.3%) | 6 (12.2%) | ||
Male | 45 (81.8%) | 367 (79.8%) | 42 (85.7%) | 43 (87.8%) | ||
Race | 0.014 | 0.714 | ||||
White | 43 (78.2%) | 410 (89.2%) | 39 (79.6%) | 41 (83.7%) | ||
Black | 9 (16.4%) | 25 (5.4%) | 8 (16.3%) | 5 (10.2%) | ||
Others | 3 (5.4%) | 25 (5.4%) | 2 (4.1%) | 3 (6.1%) | ||
Site | 0.001 | 0.898 | ||||
Upper third | 7 (12.7%) | 18 (3.9%) | 4 (8.2%) | 2 (4.1%) | ||
Middle third | 15 (27.3%) | 68 (14.8%) | 12 (24.4%) | 12 (24.5%) | ||
Lower third | 29 (52.7%) | 348 (75.7%) | 29 (59.2%) | 31 (63.3%) | ||
Overlapping | 4 (7.3%) | 26 (5.6%) | 4 (8.2%) | 4 (8.1%) | ||
Histology | 0.002 | 0.999 | ||||
SCC | 21 (38.2%) | 89 (19.3%) | 15 (30.6%) | 15 (30.6%) | ||
AC | 34 (61.8%) | 371 (80.7%) | 34 (69.4%) | 34 (69.4%) | ||
Grade | 0.030 | 0.999 | ||||
I/II | 29 (52.7%) | 298 (64.8%) | 29 (59.2%) | 29 (59.2%) | ||
III/IV | 18 (32.7%) | 137 (29.8%) | 14 (28.6%) | 14 (28.6%) | ||
Unknown | 8 (14.6%) | 25 (5.4%) | 6 (12.2%) | 6 (12.2%) | ||
