Table 1.
Baseline characteristics of all patients with stage IV colon cancer and propensity score-matched patients.
|
Characteristic |
All patients | PSM patients | |||||
|---|---|---|---|---|---|---|---|
| SPT (n=38618) No. of patient (%) |
Non-surgery (n=10315) No. of patient (%) |
P | SPT (n=10315) No. of patient (%) |
Non-surgery (n=10315) No. of patient (%) |
P | ||
| Age | <0.001 | 1.000 | |||||
| ≤65 | 19453 (50.4%) | 4844 (47.0%) | 4844 (47.0%) | 4844 (47.0%) | |||
| >65 | 19165 (49.6%) | 5471 (53.0%) | 5471 (53.0%) | 5471 (53.0%) | |||
| Gender | <0.001 | 1.000 | |||||
| Male | 19382 (50.2%) | 5516 (53.5%) | 5516 (53.5%) | 5516 (53.5%) | |||
| Female | 19236 (49.8%) | 4799 (46.5%) | 4799 (46.5%) | 4799 (46.5%) | |||
| Race | <0.001 | 1.000 | |||||
| White | 29851 (77.3%) | 7710(74.7%) | 7710 (74.7%) | 7710 (74.7%) | |||
| Black | 5680 (14.7%) | 1753 (17.0%) | 1753 (17.0%) | 1753 (17.0%) | |||
| Other | 3087 (8.0%) | 852 (8.3%) | 852 (8.3%) | 852 (8.3%) | |||
| Site | <0.001 | 1.000 | |||||
| Left | 14400 (37.3%) | 4283 (41.5%) | 4283 (41.5%) | 4283 (41.5%) | |||
| Right | 24218 (62.7%) | 6032 (58.5%) | 6032 (58.5%) | 6032 (58.5%) | |||
| Grade | <0.001 | 1.000 | |||||
| Grade I/II | 25408 (65.8%) | 7212 (69.9%) | 7212 (69.9%) | 7212 (69.9%) | |||
| Grade III/IV | 13210 (34.2%) | 3103 (30.1%) | 3103 (30.1%) | 3103 (30.1%) | |||
PSM: propensity score-matched; Left: descending colon and sigmoid colon; Right: cecum, ascending colon, hepatic flexure, transverse colon and splenic flexure.