Table 2. Equilibrium comparison of baseline characteristics of GIST patients before and after propensity score matching. stratified by gender (male vs. female).
Before matching | After matching | ||||||
---|---|---|---|---|---|---|---|
Characteristics | Male | Female | p | Male | Female | p | |
4,139 (51.8%) | 3,844 (48.2%) | 2,567 (50%) | 2,567 (50%) | ||||
Tumor site | 0.054 | 1.0 | |||||
Stomach | 2,192 (53.0%) | 2,188 (56.9%) | 1,467 (57.1%) | 1,467 (57.1%) | |||
Small intestine | 1,177 (28.4%) | 977 (25.4%) | 716 (27.9%) | 716 (27.9%) | |||
Rectum | 138 (3.3%) | 85 (2.2%) | 37 (1.4%) | 37 (1.4%) | |||
Colon | 112 (2.7%) | 107 (2.8%) | 40 (1.6%) | 40 (1.6%) | |||
Others | 520 (12.6%) | 487 (12.7%) | 307 (12.0%) | 307 (12.0%) | |||
Age | <0.001 | 1.0 | |||||
≤60 | 1,958 (47.3%) | 1,607 (41.8%) | 1,259 (49.0%) | 1,259 (49.0%) | |||
>60 | 2,181 (52.7%) | 2,237 (58.2%) | 1,308 (51.0%) | 1,308 (51.0%) | |||
Therapy | <0.001 | 1.0 | |||||
Surgery | 3,190 (77.1%) | 3,086 (80.3%) | 2,090 (81.4%) | 2,090 (81.4%) | |||
No surgery | 911 (22.0%) | 731 (19.0%) | 473 (18.4%) | 473 (18.4%) | |||
Unknown | 38 (0.9%) | 27 (0.7%) | 4 (0.2%) | 4 (0.2%) | |||
Marital status | <0.001 | 1.0 | |||||
Married | 2,751 (66.5%) | 1,861 (48.4%) | 1,675 (65.3%) | 1,675 (65.3%) | |||
Widowed | 189 (4.6%) | 773 (20.1%) | 157 (6.1%) | 157 (6.1%) | |||
Single/unmarried | 678 (16.4%) | 636 (16.5%) | 438 (17.1%) | 438 (17.1%) | |||
Divorced/separated | 318 (7.7%) | 386 (10.0%) | 199 (7.8%) | 199 (7.8%) | |||
Unknown | 203 (4.9%) | 188 (4.9%) | 98 (3.8%) | 98 (3.8%) | |||
Race | 0.62 | 1.0 | |||||
White | 2,891 (69.8%) | 2,578 (67.1%) | 1,849 (72.0%) | 1,849 (72.0%) | |||
Black | 680 (16.4%) | 729 (19.0%) | 399 (15.5%) | 399 (15.5%) | |||
Others | 568 (13.7%) | 537 (14.0%) | 319 (12.4%) | 319 (12.4%) | |||
Grade | 0.37 | 1.0 | |||||
I/II | 715 (17.3%) | 765 (19.9%) | 467 (18.2%) | 467 (18.2%) | |||
III/IV | 482 (11.6%) | 387 (10.1%) | 230 (9.0%) | 230 (9.0%) | |||
Unknown | 2942 (71.1%) | 2692 (70.0%) | 1,870 (72.8%) | 1,870 (72.8%) | |||
Tumor size | <0.001 | 1.0 | |||||
≤2 cm | 203 (4.9%) | 276 (7.2%) | 121 (4.7%) | 121 (4.7%) | |||
2–5 cm | 717 (17.3%) | 775 (7.2%) | 480 (18.7%) | 480 (18.7%) | |||
5–10 cm | 933 (22.5%) | 870 (22.6%) | 578 (22.5%) | 578 (22.5%) | |||
>10 cm | 2,286 (55.2%) | 1,923 (50.0%) | 1,388 (54.1%) | 1,388 (54.1%) |